With summer's heat beating down, staying cool is a top priority. But is it possible to get relief on a budget? Believe it or not, there are quality portable air conditioners available for under $100. The key is knowing what to look for.
When shopping for an affordable portable AC, you'll want to consider BTUs, coverage area, modes, and noise level. BTUs indicate the cooling power, so look for a unit with at least 5,000 BTUs for a small room. Check the maximum coverage area to ensure it's sufficient for your space. Modes like fan and dehumidifier increase versatility. And noise level matters for comfort, so aim for decibels in the 50s or below.
You'll also want to examine convenience factors like casters for mobility, remote controls, and auto on/off timers. And don't forget to check filter types—washable filters are reusable which saves money over time. Finally, look for extra features like swing louvers for airflow direction and memory for restoring settings.
Finding the right sub-$100 portable AC takes research. But doing your homework helps ensure you get the best cooling solution for beating the heat on a budget. Ready to find the perfect model? Keep reading for our top picks and reviews.
9 Best Portable Air Conditioner Under $100
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The product is ideal for cooling and providing airflow in various indoor spaces such as bedrooms, living rooms, basements, and offices.
The product is ideal for cooling small spaces with adjustable modes, speeds, remote control, timer, oscillation, and ice packs.
The product is ideal for cooling, humidifying, and purifying the air in a room using a portable and versatile unit.
The product is ideal for cooling and humidifying small spaces like rooms, bedrooms, offices, or desks with added RGB light feature.
The product is ideal for providing personal air cooling and humidification in various settings such as bedrooms, offices, cars, and camping.
The product is ideal for cooling small rooms or offices, providing relief during hot weather.
The product is ideal for cooling, humidifying, and improving air quality in various indoor spaces like homes, offices, and bedrooms.
The product is ideal for cooling and refreshing small rooms, offices, and outdoor spaces.
The product is ideal for providing personal cooling and refreshing airflow in rooms, offices, cars, camping, or any small spaces.
1. Arctic Air Evaporative Cooler: Hydro-Chill, Portable And Powerful!
The Arctic Air Chill Zone is an exceptional cooling device that is both user-friendly and easy to understand. Its quality and durability are impressive, making it a reliable option for cooling purposes. I personally have this cooler in my kitchen, and it effectively cools the entire space despite its large size. I highly recommend it to anyone in need of a cooling solution.
Additionally, I am a big fan of the colorful lights that come with this cooler. They not only add a touch of vibrancy to the room but also enhance the overall ambiance.
The Arctic Air Chill Zone can be considered as a mini version of swamp coolers, which are renowned for their effectiveness in dry climates. Growing up in a dry area, I have had firsthand experience with swamp coolers and their ability to cool an entire house by blowing air over water. The Arctic Air Chill Zone operates on the same principle, albeit on a smaller scale. It efficiently cools my small bedroom, providing a comfortable environment.
However, it is important to note that this cooler may not produce the same cooling effect in humid areas. Although I currently reside in a coastal region with high humidity, I was pleasantly surprised by its ability to cool my room. Nonetheless, it is best suited for small rooms in dry climates, where it can reduce heat significantly.
For optimal performance, it is recommended to use cold water and ice with the Arctic Air Chill Zone. This will ensure the best cooling results.
2. Portable 3-In-1 Air Cooler: Cool Anywhere, Anytime
This evaporative cooler air conditioner is an excellent choice for cooling a bedroom. The cold mode effectively cools the room, creating a comfortable environment for sleeping. One of the standout features of this cooler is its minimal noise level, making it perfect for running while sleeping without any disturbance.
The package includes 5 containers for cooling liquid, ensuring that you have an ample supply to keep the cooler running efficiently. Additionally, the inclusion of a remote control with batteries adds convenience to the user experience. You can easily control the cooler from a distance, allowing you to turn it on and off, change modes, adjust the swing feature, and even set a timer.
Another advantage of this cooler is its portability. It is equipped with 4 casters, making it easy to move around as needed. This feature is especially beneficial if you want to use the cooler in different rooms or if you have limited space.
As a first-time air cooler user, I find this product to be exceptional. It is user-friendly, with a straightforward setup process. The inclusion of a remote control is a significant advantage, and the fact that it does not block the window is a plus.
I purchased this air conditioner for my daughter's bedroom, as it tends to be warm. She is now enjoying the cool air provided by this beautiful mobile AC unit. The compact size of the cooler makes it suitable for small rooms, and its performance is impressive.
With summer approaching, I plan to switch off my central AC and rely on this cooler to save on electricity bills. It is cost-effective and perfect for cooling a small room. Furthermore, its portability allows for easy movement from one area to another.
I decided to order this cooler ahead of summer to avoid any potential supply shortages. Additionally, my apartment does not provide an air conditioner in the bedroom, so this product seemed like the ideal solution. It runs smoothly and appears to be capable of fulfilling its purpose. Moreover, its lightweight design and attractive appearance are notable features.
3. Easycool 3-In-1 Portable Air Conditioner With Humidifier
I have been using this portable AC unit in my room every day, especially during the hot Florida weather. I am extremely pleased with its performance as it effectively cools down my fairly large room. In fact, I am even considering getting another one for my living room. The noticeable difference it makes in keeping me cool is impressive.
Living in an area with frequent dry heat, I have been searching for a cooling solution that is both efficient and eco-friendly. This Portable AC Swamp Cooler has been a game-changer for me. Not only is it lightweight and easy to move around, but it also quickly lowers the temperature in just a few minutes. The generous water tank capacity ensures fewer refills, and the whisper-quiet operation allows me to enjoy peace and tranquility. Additionally, this unit consumes noticeably less energy compared to traditional AC units, benefiting both my wallet and the environment. Overall, it is a remarkable blend of convenience and performance, and I highly recommend it.
I have been running this swamp cooler continuously, even switching out the ice packs once they melt. The cool airflow it provides is great. To maintain its cooling effectiveness, I make sure to constantly replace the ice packs. Fortunately, the unit comes with four free ice packs, so I use two at a time – two in the cooler and two in the freezer. Once they melt, I replace them and repeat the process. This keeps the air consistently cool and refreshing.
Initially, I was unsure how to use the swamp cooler. However, after reading the instructions carefully, I learned that using the two provided ice packs, frozen beforehand, and filling the unit with water made a significant difference. I keep it next to my desk in my room, and it keeps me cool throughout the day, even when the temperature outside exceeds 90 degrees Fahrenheit. I would definitely recommend this product, but make sure to read the instructions thoroughly for optimal performance.
Although it took me some time to freeze the ice packs and ensure that the cooler was producing cold air when filled with water, once I figured it out, the unit worked flawlessly and provided excellent cooling.
4. Coolmist Portable Air Cooler With Timer & Rgb Light
I recently purchased this cooling fan while waiting for my AC to be repaired, and I must say, I am very pleased with its performance. While it may not cool off an entire room, it works exceptionally well when placed about 4 feet in front of you and pointed directly at yourself. As someone who is naturally hot natured, this fan has been a lifesaver for keeping me cool while working in my office.
Speaking of my office, it tends to be the hottest room in my apartment during the summer due to my computer equipment. I bought this fan in hopes of alleviating some of the heat, and while it does help in keeping me cooler, it doesn't significantly impact the ambient temperature of the room.
One of the standout features of this cooling fan is how quiet it is compared to a traditional fan. The air it produces is also softer, providing a more comfortable experience. Although it may not be as cold as an AC, it still does a great job of keeping the area cool.
I cannot emphasize enough how impressed I am with this cooling fan. It has no drawbacks and countless advantages. The fan is powerful, and the cool mist feature is a nice addition. The mist is gentle enough that there is no mess or residue left behind. Additionally, the color-changing lights and the option to set a timer for automatic shut-off make this fan even more convenient to use. I am so satisfied with this purchase that I plan to have one in every room of my home. It is definitely worth the cost, and I highly recommend it to everyone.
However, I must provide an update on my experience with this fan. After 1.5 weeks of use, the cooling option stopped working, leaving me with just a fan. This was disappointing, especially given the extreme heat in Texas. Additionally, I encountered some challenges with cleaning the fan, as I found it difficult to remove the back. Furthermore, while the fan provided cooler air, it was not conducive to a good night's sleep. As a light sleeper, it kept me awake more than it helped me sleep.
On a positive note, the top part of the fan can accommodate smaller ice cubes, although my larger ice cubes were a tight fit. I ended up purchasing a smaller ice cube tray to ensure I could add more ice to the fan.
Despite these minor setbacks, I still consider this cooling fan to be a good purchase. While I no longer use it for nighttime sleeping, it has found a place in my living room and continues to provide a comfortable cooling experience.
5. Evapolar Ocean Blue Air Cooler – The Portable Miniac
I recently had a high electric bill due to excessive heat in California, so I decided to explore alternatives to running my central air conditioning all day. After reading reviews, I decided to give this portable air conditioner a try, despite its overall rating of 3.6. To my surprise, it actually exceeded my expectations, and I believe that some of the negative reviews could have been avoided with better understanding of its purpose.
Firstly, it's important to note that this portable air conditioner is not designed to cool an entire room. Its purpose is to cool down a specific area, such as a bed, desk, or kitchen corner, where you spend a significant amount of time. It is not intended to cool down your entire house.
Secondly, some reviewers may have jumped to conclusions too quickly. It takes about 20 minutes for the water to soak through the filter cartridge, as the cooling process relies on water evaporation in dry climates. Initially, it may function as a regular box fan, but after some time, you will notice that it pushes out air that is 8-10 degrees cooler than the room temperature.
Thirdly, the effectiveness of this portable air conditioner is influenced by the climate. It works better in drier climates like California, Arizona, or New Mexico. If you are in a humid place like Florida, it may not be as effective. Consider the climate before purchasing.
Additionally, some reviewers seemed unaware of the multiple settings available. The lowest setting may seem weak, but there are four settings that can be cycled through using the button on top of the device. The second setting is likely the most suitable for desk or bedside use, while the highest setting may be able to cool a small bedroom. However, it should be noted that this portable air conditioner is designed to cool the immediate vicinity, not a large room. At its highest setting, you can feel a cool breeze from up to 8 feet away, but beyond that, the impact may be minimal.
One aspect I did not notice initially is that it can be powered using a USB cord, allowing you to use it with a computer or a power bank on the go. Additionally, it only consumes 7.5 watts, which is significantly lower than the average central air system. Considering the potential savings on electric bills, the price of $79 may be justified for those who work from home or spend extended periods in a specific area.
6. Coolbreeze: Ultimate Portable Air Conditioner And Cooler
I have been using this fan on my nightstand for the past few nights and it has been a lifesaver. The air hitting my face feels refreshing and I appreciate the option to choose from various speeds. I haven't tried putting ice or water in it to make the room more humid, but as a fan, it has been great.
Compared to my small fan, this one has a huge tank and lasts almost all night before it needs to be refilled. The handle is convenient for carrying it around and the lighting feature is cool, although I personally only use it at bedtime.
I purchased this fan as an upgrade and it has provided great cooling air for the end of summer. I love the flexibility of the four wind speeds and the timer is perfect for setting it up overnight. It is compact, efficient, and has made my room much more comfortable.
In comparison to my previous fan, this one has the added advantage of having a bottom to collect excessive water. I find this feature useful and so far, the fan has been doing a good job.
I can confirm that it does work! Just make sure to use water that is colder than the surrounding air. You can even add some ice for an extra cooling effect.
7. Coolbreeze 3-In-1 Portable Air Cooler: Pearl White
I recently purchased the Evaporative Air Cooler and I have to say, it has made a significant difference for me during the hot summer days. This air cooler is absolutely fantastic! It not only effectively lowers the temperature in my room, but it also provides a refreshing breeze, making it incredibly comfortable. The evaporative cooling technology used in this device efficiently cools the air without drying it out, unlike traditional air conditioners.
One of the things I appreciate the most about this air cooler is its energy efficiency. It consumes much less power compared to AC units, which is not only cost-effective but also eco-friendly. Additionally, this air cooler is very easy to use. It comes with a remote control for added convenience and is already assembled, so all you need to do is remove some tape, add the wheels, fill the freezable bottles, and place them in the freezer. Filling the air cooler from the top is a breeze, and it holds a good amount of water.
I've noticed that my room stays cool while the rest of the house is warm, which is a testament to the effectiveness of this air cooler. It's also easy to move around, even when filled with water. The cool air it blows is extremely quiet, which is a big plus for me, as I can't sleep without the fan noise. The buttons on the air cooler as well as on the remote control are easy to see and use.
I haven't tested if this air cooler can be the sole source of cool air for a larger space, but for a single room or to be moved to different rooms throughout the day, it works wonders. In fact, my husband and I were so impressed with it that we even thought about bringing it on camping trips to cool the inside of the tent at night. It would also be great for use in a camper.
All in all, I am extremely satisfied with my purchase of the Evaporative Air Cooler. It has exceeded my expectations and provided a cost-effective and eco-friendly cooling solution. I highly recommend it to anyone in need of a reliable and efficient air cooling device.
8. Meatsono Portable Evaporative Air Cooler: Rechargeable & Colorful!
The Air Cooler Fan is an excellent device that provides a strong and efficient cooling experience. It is incredibly easy to use, requiring only tap water to fill the top water tank. It should be noted that using purified or distilled water may cause damage to the system, as stated in the directions.
The package includes six ice packs, of which you can use anywhere between 0-3. This ensures that you always have extra ice packs available. It is important to leave some room for the water to expand into ice, as the plastic can break if overfilled or dropped, as mentioned in the directions.
The ice packs are placed in the ice box behind the air guide grille, which can be easily removed with magnets. The fan blowing over the ice packs creates cool air, and the more ice packs used, the cooler the air becomes. Fewer ice packs allow for fuller airflow.
The device features three buttons on the top: Atomizer, Power/Fan, and Lamp. The Power/Fan button controls the on/off function, as well as the fan speed. The more ice packs used, the cooler the air will be. The atomizer has three levels and uses water from the water tank to spray a fine mist over the ice box. It is important to have water in the tank before using the atomizer to avoid damage, as stated in the directions.
The Atmosphere Lamp also has three levels of brightness and different colors, creating a pleasant ambiance. The device runs for six hours continuously and then automatically shuts off, regardless of whether there is water in it or not. It is crucial to clean and dry the unit after each use and store it in a dry location. Additionally, the device must be placed on a flat surface, as mentioned in the directions.
The directions advise against using the atomizer on a rainy or humid day, although the reason is not specified. It may be worth testing on such a day for personal experience.
During testing, the Air Cooler Fan performed admirably, providing a cool and refreshing breeze. It is essential to note that the airflow may be slightly lopsided, as observed by the reviewer. The device is rechargeable and can be used with the included USB power cord or plugged into a mobile power supply. It is versatile, allowing for individual use of the lamp, atomizer, or fan.
9. Portable Evaporative Air Cooler With 7 Colors Light
I recently received this product and have yet to try it with a bottle, but I can already envision how perfect it will be for patio events and family gatherings in the evenings. The lights come with three modes: flickering, slow flickering, and constant light, which gives me options to create different atmospheres. I am truly impressed with the versatility of these lights.
I absolutely loved using these lights for decorations. I had saved some of my big wine bottles, and when I placed the lights inside, they looked great! The ambiance they created was perfect for my parties. In fact, I am planning to purchase more for future events.
This product has been a game-changer for me during the summer months. Normally, I would feel extremely hot, but ever since I started using this item, I haven't felt uncomfortable due to the heat. It's like having a small air conditioning unit that provides relief from the scorching temperatures.
I specifically bought this fan for my trailer, and it has exceeded my expectations. Charging it is a breeze, and I appreciate that I can use it at night when I turn off my trailer to save on fuel. The cool temperature it generates is even cooler than I had anticipated, making it a perfect fit for my camping trips.
I have grandchildren who are constantly breaking or losing things, so finding an affordable option is crucial. This product has been a lifesaver. I simply put the lights in empty water or soda bottles, and they absolutely love it! Not only is it a cost-effective solution, but it also brings joy to my grandkids.
Are there any additional costs associated with owning a portable air conditioner under $100, such as maintenance or filter replacements?
Yes, there can be additional costs associated with owning a portable air conditioner under $100. While the initial purchase price may be affordable, you should also consider maintenance and filter replacements.
Maintenance is an important aspect of keeping your portable air conditioner running efficiently. This may involve cleaning the unit regularly, including the filters, coils, and vents. Some portable air conditioners come with washable filters, while others require replacements.
You may need to purchase new filters periodically, which can add to the overall cost.
Additionally, it is important to consider the energy consumption of the portable air conditioner. While cheaper models may have a lower upfront cost, they may not be as energy-efficient. This could result in higher electricity bills over time.
To ensure the longevity and optimal performance of your portable air conditioner, it is recommended to follow the manufacturer's instructions for maintenance and filter replacements. This will help keep the unit running smoothly and minimize any additional costs that may arise.
Are there any energy-efficient portable air conditioners under $100?
While it may be challenging to find energy-efficient portable air conditioners under $100, there are some options available that are relatively affordable and offer decent energy efficiency. One such option is the Frigidaire FFRA0511R1E Window-Mounted Mini-Compact Air Conditioner, which is designed to cool small rooms efficiently.
While it is technically a window-mounted unit, it can also be used as a portable air conditioner with the help of a window installation kit. Another option is the Honeywell MO08CESWK Compact Portable Air Conditioner, which is compact and energy-efficient, suitable for small spaces.
Additionally, you may consider looking for discounted or refurbished models from reputable brands, as they can sometimes offer energy-efficient portable air conditioners at a more affordable price. Remember to check the energy efficiency rating (EER) of the unit before making a purchase to ensure it meets your energy-saving requirements.
Are there any portable air conditioners under $100 that offer both cooling and heating functions?
While it is quite challenging to find portable air conditioners under $100 that offer both cooling and heating functions, there are some options available in the market. However, it's important to note that these units may have limited features and might not provide the same level of performance as more expensive models.
One suggestion is the Ivation Portable Air Conditioner, which is priced under $100 and offers both cooling and heating capabilities. It is a compact unit suitable for small spaces and comes with a built-in dehumidifier.
Another option to consider is the BLACK+DECKER BPACT14HWT Portable Air Conditioner, which is slightly above the $100 mark but offers cooling, heating, and dehumidifying functionalities.
It's worth mentioning that while these portable air conditioners can provide both cooling and heating, their effectiveness may vary depending on the room size and insulation. Therefore, it's essential to carefully read the product specifications, customer reviews, and consider the specific requirements of your space before making a purchase decision.
Are there any reliable portable air conditioners available for under $100?
While there are portable air conditioners available in the market for under $100, it is important to note that their reliability may vary. Lower-priced portable air conditioners often have limited cooling capacity and may not perform as efficiently or effectively as higher-end models.
It is advisable to thoroughly research and read customer reviews before making a purchase.
One suggestion is to consider refurbished or second-hand units from reputable sellers. These can sometimes offer better quality at a lower price point. Additionally, you may want to consider alternative cooling options such as evaporative coolers or window fans, which can be more affordable and energy-efficient alternatives to traditional portable air conditioners.
Ultimately, while it may be challenging to find a reliable portable air conditioner under $100, investing in a slightly higher-priced unit from a reputable brand can provide better performance and durability in the long run.
Can a portable air conditioner under $100 effectively cool a small room or office?
While it is possible to find portable air conditioners under $100, their effectiveness in cooling a small room or office may be limited. These budget-friendly options typically have lower cooling capacities, which means they may struggle to adequately cool larger spaces.
However, if you have a small room or office with good insulation and minimal heat sources, a portable air conditioner under $100 could potentially provide some relief.
It's important to consider the specific cooling capacity of the unit you are purchasing, usually measured in BTUs (British Thermal Units). A higher BTU rating indicates a greater cooling capacity. For a small room or office, a portable air conditioner with a cooling capacity of around 5,000 BTUs may be sufficient.
To maximize the cooling efficiency, ensure the unit is properly sized for your space, and consider factors such as insulation, room layout, and heat-generating devices. Additionally, keeping doors and windows closed while the air conditioner is running can help maintain a cooler environment.
If cooling a larger room or office is a priority, it may be worth investing in a more powerful and efficient portable air conditioner, even if it means exceeding the $100 budget.
How do portable air conditioners under $100 compare to more expensive models in terms of performance?
Portable air conditioners under $100 generally have lower cooling capacities and may not be as efficient as more expensive models. They are designed for small spaces and provide modest cooling, making them suitable for personal use or small rooms.
However, they may struggle to cool larger areas effectively.
In terms of features, cheaper portable air conditioners usually have basic controls and limited options for customization. They may not offer advanced features like timers, remote control, or energy-saving modes.
The build quality and durability of these budget-friendly models may also be lower, impacting their longevity and overall performance.
On the other hand, more expensive portable air conditioners often have higher cooling capacities, better energy efficiency, and superior cooling performance. They are designed for larger rooms and provide faster and more effective cooling.
These models usually come with a wider range of features and options, allowing for greater comfort and convenience.
While portable air conditioners under $100 can provide some relief in hot weather, investing in a higher-priced model can offer better cooling performance, additional features, and longer-lasting durability.
If budget constraints are a concern, it may be worth considering refurbished or second-hand options from reputable brands, which can provide better performance at a lower price point.
How noisy are portable air conditioners under $100 compared to higher-end models?
The noise level of portable air conditioners can vary depending on the price range and the specific model. Generally, portable air conditioners under $100 tend to be louder compared to higher-end models. This is mainly due to the difference in the quality of components and engineering design.
Lower-priced portable air conditioners often have less efficient compressors and fans, resulting in increased noise levels. They may produce a noticeable hum or loud operating noise. On the other hand, higher-end models are engineered to prioritize quieter operation.
They often utilize advanced technologies such as improved insulation, noise-reducing compressors, and optimized fan design to minimize noise levels.
While it is challenging to provide an exact noise comparison, it is safe to assume that portable air conditioners under $100 will generally be louder than their higher-end counterparts. However, it's worth noting that even higher-end models can produce some level of background noise, so it is advisable to check the decibel rating or read customer reviews for specific models to get a better understanding of their noise levels.
What are the key features to look for in a portable air conditioner under $100?
When looking for a portable air conditioner under $100, there are a few key features to consider:
1. Cooling capacity: Ensure that the unit has sufficient cooling power to effectively cool the space you intend to use it in. Look for the BTU (British Thermal Units) rating, as a higher rating indicates a more powerful cooling capacity.
2. Size and portability: Opt for a compact and lightweight unit that can be easily moved around and fits well in your desired space. Check the dimensions and weight of the unit to ensure it meets your requirements.
3. Energy efficiency: Look for an air conditioner with a high Energy Efficiency Ratio (EER) rating. This indicates that the unit can cool efficiently while consuming less energy, helping you save on electricity bills.
4. Noise level: Consider the noise level of the portable air conditioner, especially if you plan to use it in a bedroom or office where quiet operation is important. Look for models with low decibel ratings for a quieter experience.
5. Additional features: Some portable air conditioners come with extra features like programmable timers, remote controls, adjustable fan speeds, and air purifiers. Consider your specific needs and preferences to choose a unit that offers the features you desire within your budget.
While finding a portable air conditioner under $100 may limit your options, by considering these key features, you can still find a suitable unit that meets your cooling needs.
What is the average lifespan of a portable air conditioner under $100?
The average lifespan of a portable air conditioner under $100 can vary depending on several factors such as the brand, model, usage, and maintenance. Generally, portable air conditioners in this price range may have a shorter lifespan compared to higher-end models.
Most portable air conditioners, regardless of price, are designed to last approximately 5 to 10 years with regular use and proper maintenance. However, cheaper models may have a shorter lifespan due to their construction and components.
To ensure your portable air conditioner lasts as long as possible, it is important to follow the manufacturer's guidelines for usage and maintenance. This includes regular cleaning of filters, coils, and vents, as well as avoiding overuse or extreme temperature conditions.
Additionally, investing in a higher-quality unit may provide a longer lifespan and better overall performance.
If you are looking for a portable air conditioner under $100, it is recommended to read customer reviews and consider purchasing from reputable brands known for their durability and reliability.
Which brands offer the best value for portable air conditioners under $100?
When it comes to portable air conditioners under $100, it's important to manage your expectations as the options may be limited in terms of features and cooling capacity. However, there are a few brands that offer decent value in this price range.
One brand to consider is Black + Decker. They have a range of portable air conditioners that are budget-friendly and provide adequate cooling for small to medium-sized rooms. Their models often come with features like adjustable temperature settings, multiple fan speeds, and energy-saving modes.
Another brand worth considering is hOmeLabs. They offer affordable portable air conditioners that are easy to use and maintain. Their units typically come with programmable timers, remote controls, and adjustable airflow direction, making them convenient to operate.
Lastly, Honeywell is a reliable brand that offers portable air conditioners under $100. While their models may not have all the bells and whistles, they are known for their durability and efficiency. Honeywell units often come with washable filters, adjustable thermostat settings, and a compact design.
Keep in mind that portable air conditioners under $100 may not cool large areas or have advanced features like built-in dehumidifiers or Wi-Fi connectivity. However, these brands offer good value for those on a tight budget.