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These filtering systems are designed to remove harmful allergens from the air, allowing you to breathe and sleep easier.

Whether you suffer from seasonal allergies, or year-round issues associated with mold, pet dander, and dust inside your home, the effects can have a serious effect on your physical and emotional health. If you're tired of the constant runny noses and poor sleep that allergies can cause, consider purchasing an air purifier. These handy machines can make a bigger difference than you may think, and as long as it's powerful enough to process the air in your room, can be an effective way to mitigate some of your symptoms. They’re not cheap, but the benefits to your health and lifestyle could be worth the investment.

The most important factor to keep in mind when choosing an air purifier is whether or not it’s able to effectively process the air in your space. Larger spaces will need a more powerful machine, while smaller rooms, like a bedroom or nursery, can get away with a more compact option. Since brands use different cycle times and room sizes to advertise their maximum coverage, it can be challenging to compare one against the other. By using ACH (air changes per hour) you can better compare models. The recommended ACH can vary, but Fellowes recommends that your air purifier should make between three and five changes per hour. If you’re able to measure the square footage of your existing space, you can use ACH to ensure the best option for you.

You should also pay attention to the type of filter the purifier uses. HEPA (high-efficiency particulate absorbing) filters are recommended for their effectiveness, and their triple-layer design captures up to 99.97 percent of particles in the air. These filters can capture allergens as small as 0.3 microns in size, which makes them even more important for those looking to ease their allergy suffering.

Since we curated this list specifically for allergy sufferers, we paid close attention to the type and effectiveness of the filters included in these models, noting any that had scientific evidence backing up their stated efficacy. To evaluate our options even further, we also combed through customer reviews to get an idea of how they actually performed in real world settings. It was also important to us to provide a wide range of coverage options, so regardless of the room you plan on using it on, you should find a purifier that works for you.

This Levoit model combines smart functionality with an impressive filtering power, thanks to its smartphone connectivity and a true HEPA filter capable of capturing particles as small as 0.3 microns in size.

The color-coded indicator rings on the top of the unit allow you to easily monitor the current air quality level, and if you’re not in the room, you can use the WeSync app on your phone to do so. It’s also compatible with an Alexa unit, making it a convenient choice for those who prefer to use voice controls. Its 22dB noise level in “sleep mode” makes it a relatively quiet unit, and a good option for using in your bedroom.

This black color and sleek design of this Bissell purifier give it a high-end, professional look, and the three-stage filter can handle allergens, pet hair, smoke, and odors with ease.

A single dial on the top of the unit allows you to scroll through the five speed options, as well power the unit on and off. Plus, since the filters are accessed from the front of the unit, you can keep it positioned against the wall at all times. Its allergen eliminating capabilities are frequently praised in online reviews as well.

This compact purifier doesn’t offer a ton of coverage, but the small size and light weight—just 2.34 pounds—make it a good choice for smaller rooms or for taking with you on vacation. Its convenient aroma pad makes it easy to enjoy the relaxing benefits of essential oils, and a single control button allows you to easily scroll through the three fans speeds, as well as power the machine on and off. An especially satisfied customer not only praised its allergy soothing effects, but added that its small size and quiet operation made it perfect for bringing to the office.

It’s worth noting that this model does not use a true HEPA filter, although its triple-layered filter will still remove 97 percent of airborne particles up to 0.3 microns in size.

This purifier features an impressive amount of functionality, allowing you to precisely control the air speed, set an 8-hour timer, and keep an eye on the current status of the filter. We’re also big fans of the red LED that reminds you when it’s time to replace the filter, ensuring that it’s always working efficiently and effectively.

This true HEPA filter will capture dander and dust and is designed to neutralize bad odors, and multiple customer reviews cited its effectiveness at combating pet allergies specifically.

Depending on the number of particles it needs to process and the time spent running, each filter should last about six to eight months before needing replacement.

If you have a lot of space to cover and don’t mind the high price tag, this Hathaspace purifier could be just what you’re looking for. It features a pair of washable pre-filters designed to capture larger debris, like pet hair and dust mites, so the two H13 HEPA filters can focus on the small stuff. Its built-in sensors also monitor the air quality of the room, and adjust the fan speed to ensure it’s always working as efficiently as possible. Customer reviews praise both its ability to reduce dust and allergens, as well as its quiet operation.

Searching for an air purifier that won't look out of place in your modern home? This Dyson model combines a clean, sleek design with the HEPA filters necessary for maximum allergen removal. The filtration system wraps around the base of the unit, and a powerful fan circulates the purified air around the room. You can choose between 0 and 360 degrees of oscillation too, making it a great choice for those in warm climates looking for a cooling breeze. A convenient remote control is stored on top of the machine using a magnet, so it's always easy to find when you need it.

If you’re short on floorspace or just prefer the look of a wall-mounted air purifier, this RabbitAir model could be a great fit. You can choose between standalone or wall-mounted installation, and the five-year warranty should have you covered if any issues arise. The front-mounted control panel makes it easy to read from across the room, and the mood light is a nice perk that we didn’t find on other options. We especially appreciate that RabbitAir went into detail when explaining exactly how much space this model can effectively purify the air in—350 square feet—and how often, taking the guesswork out of the equation.