The Best Air Purifier for Pets: Reviewed for 2021

Published: September 30, 2021

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We all love our cats and dogs, but sometimes their dander or hair can irritate allergies or cause too much odor in a home. Purchasing an air purifier can help ensure that the air in your home remains clean to alleviate pet allergies and asthma made words by dander and hair and keep pet odors at bay. If you’re looking for the best air purifier, we’re here to help.

We researched and reviewed several air purifiers for small and large rooms to help you find the one that matches your overall needs. Whether you’re looking to splurge on something fancy, want a budget-friendly pick, or need a portable option that you can move from room to room, we think you’ll find what you need in our reviews below.

Verified Review: Our Hands On Experience

We don’t like to recommend products without giving them a try first. During the research stage for writing this review, we purchased a large number of air purifiers to test. The products featured below represent our top picks, and we liked the way they performed better than the other models we tried. Here are a few additional observations we had for each model:

  • LEVOIT Air Purifier for Home: We were impressed with how effective this unit was at eliminating pet odor smells around the litter box area. We also like how quiet the low speed is, and that it allows the machine to operate in the background without causing any disruptions. However, the higher speed was a bit louder than we’d like.
  • Winix 5500-2 Air Purifier with True HEPA: In our home with multiple dogs, we found that this really helped to eliminate that ‘dog smell,’ and were very pleased with the results. However, we didn’t realize how expensive the replacement filters were going to be.
  • Coway Airmega 400 Smart Air Purifier: We were pleased with a lot of the special features on this filter including the washable filters (pre-filter), timer settings, and indicator lights. However, given how large the unit is, we wish it had wheels to make it easier to move around.

The Top Picks for the Best Air Purifier for Pets: Ranked

LEVOIT Air Purifiers for Home, H13 True HEPA Filter for Smoke, Dust, Mold, and Pollen in Bedroom, Ozone Free, Filtration System Odor Eliminators for Office with Optional Night Light, 1 Pack, White
  • Designed in California. The UVC Light and Anion that other Brands adopt to purify air could produce a kind of air pollutant-Ozone, which is especially harmful for the children, Asthma sufferers and pets. Levoit air purifiers never use these for 100% Ozone free
  • Advanced 3-Stage Filtration System: The Pre-Filter, True HEPA Filter, and High-Efficiency Activated Carbon Filter capture allergens, pet hair, dander, smoke, mold, odor and large dust particles, in addition to removing 99. 97% of airborne contaminants as small as 0. 3 microns
  • Genuine Replacement Filters: Search for B06XD7X81D for Replacement filter. Use genuine Levoit replacement filters to maintain the best performance and to ensure what you're buying is worthy of your investment
  • Adjustable Speeds with Silence: Three speed settings (low, medium, high) to meet different air quality and personal needs. Purify the air with only 25 dB on low level, suitable for restful environment and sleep time
  • High-Efficiency Air Purifier: Circulates room air over 4 times per hour to achieve rapid purification. Unique size and contemporary design make the Levoit air purifier suitable for small or medium-sized rooms, like offices and dorms

We like the performance that the LEVOIT Air purifier delivers. It uses a 3-stage filtration system to effectively remove contaminants from your air. The three stages include the pre-filter, the True HEPA filter, and the high-efficiency activated carbon filter.

These three filters work together to eliminate pet odors, hair, and dander from your home, as well as other contaminants such as mold, dust, and smoke. The filters can remove contaminants that are as tiny as 0.03 microns.

Choose from three different speed settings depending on the air in your home and your personal noise preferences. When on the low setting, the air purifier operates at just 25 decibels.

Each hour, the air purifier will circulate the air in the room four times for the most effective purification possible. This air filter also has an indicator light to alert you when it is time to replace the filter.

Click here to check out LEVOIT Air Purifier for Home on

Winix 5500-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Washable AOC Carbon Filter Medium
  • True HEPA filter captures 99.97% of airborne pollutants; dust mites, pet dander, pollen and other allergens as small as 0.3 microns
  • Washable AOC Carbon Filter, made from activated carbon granulars for removal of household odors. Decibels 27.8 dB
  • PlasmaWave acts as a permanent filter to safely break down odor, allergens, chemical vapors and other pollutants with no harmful ozone
  • Smart Sensors gauge the air and our Auto Mode adjusts the fan to filter the air as needed; with a sleep mode for silent night time operation
  • CADR rated for 360 square feet room size. Suitable for medium and large rooms; kids bedrooms, family rooms and kitchens

If you need to eliminate pet odors from your home, we think you’ll like the Winix 5500-2 Air Purifier. This model features a True HEPA filter that removes up to 99.97% of airborne pollutants, such as pet dander, pollen, and dust mites, from the air.

It also features an AOC-activated carbon filter that works to eliminate odors. The filter is washable and reusable as well. Another feature of this filter is the PlasmaWave. This works to break down pollutants, odors, allergens, and vapors without dispersing harmful ozone.

You can choose your desired setting, or let the filter’s auto mode sense the air quality in your space and adjust itself. There is also a sleep mode that can ensure the machine isn’t too loud to disrupt you at night.

This unit is designed for use in medium and large rooms up to 360 square feet.

Click here to check out Winix 5500-2 Air Purifier with True HEPA on

Coway Airmega 400 Smart Air Purifier (Covers 1,560 sq. ft.), True HEPA Air Purifier with Smart Technology
  • Coway Airmega 400 room air purifier is designed to accommodate large room sizes up to 1,560 square feet and cleans the air at least two times per hour when used as recommended.
  • Coway Airmega Max2 filter-a combined activated carbon and a True HEPA filter-captures and reduces up to 99.99 percent of particles 0.01 microns in the air, including pollen, pollutants and other allergens. It also reduces more than 99 percent of volatile organic compounds and reduces fumes such as NH3 and CH3CHO.
  • Coway Airmega’s pollution sensor communicates indoor air quality testing in real-time. The brightly colored LED ring lets you know how clean or dirty your indoor air is, every minute of the day.
  • Coway Airmega has five fan modes: Smart, Sleep, Low, Medium and High. Noise level is nearly silent at lower speeds. Max noise at highest setting is 43.2 dB.
  • Coway Airmega is a smart, energy efficient air purifier with a three-setting smart mode to adapt to its surroundings. Fan speed automatically adjusts based on the room’s air quality and lighting conditions to improve air quality.

If you’re looking to splurge to find the best air purifier for a larger space, we’d recommend the Coway Airmega 400 Smart Air Purifier. You can use this unit in rooms up to 1,560 square feet, and during just one hour it will circulate the air in the room at least two times.

The machine features an activated carbon filter and a True HEPA filter that work together to remove up to 99.99% of particles as small as .01 microns from the air. It can eliminate pollen, dander, allergens, volatile organic compounds, and other pollutants.

The filter features a special sensor that will let you know the quality of your air. When a contaminant is detected in the air, the sensor will change colors. There are five different fan modes to allow you to control the speed and noise level of this filter.

Click here to check out Coway Airmega 400 Smart Air Purifier on

Buying Guide for Air Purifiers for Pets

There are a few different considerations to keep in mind as you are shopping for an air purifier for your pets. Using these considerations to guide your search can help ensure that you end up choosing the best product that will meet your needs.

Coverage Area

First, you’ll need to consider the size of the space where you plan to put the air purifier. Different air purifiers offer different capacities, and some are only designed for smaller spaces. Determine the number of square feet in your space, and choose an air purifier that will be strong enough to work in that space.

If you’re looking for a portable filter to move between spaces in your home, choose one that has a large enough capacity for the largest room where it may be used.


Next, be sure to check the volume for each air purifier you’re considering. Some models are much noisier than others, and depending on where you plan to put the air purifier, could be too loud. Some pets are also more sensitive to sounds, so if this is true for your dog or cat, look for an ultra-quiet air purifier or one that includes quiet modes.

Additional Features

Some manufacturers include additional features with their air purifiers. These may include temperature settings and enhanced odor-eliminating filters. Washable filters are another feature you may want to look for. Washable filters can reduce the overall cost of owning the air purifier since you won’t need to purchase new filters.

You may also want to consider the aesthetic appeal of each air purifier, especially if it will be going in a main living area in your home. Some air purifiers also include different lighting options, which may add to their aesthetic appeal.


Finally, keep your budget in mind. Are you looking for a more economically-priced option, or are you in a position to splurge a bit and choose an air filter that offers all the bells and whistles?

Last update on 2021-11-17 / Affiliate links / Images from Amazon Product Advertising API

The Best Air Purifier for Pets: Reviewed for 2021 FAQs (Frequently Asked Questions) 

What are the best air purifiers for a house with pets?

The best air purifier for homes with pets will vary depending on your exact needs. For example, large rooms will require a more powerful air purifier than small rooms will. Whether you’re looking for odor control, relief from allergies, or both, different air filters may offer a better solution. Some are designed more for pet odors, while others have special filters better at filter hair and dander for pet allergies and asthma relief.

Our favorite air purifier for homes with pets is the LEVOIT Air Purifier. We also liked the Winix 5500-2 Air Purifier and the Coway Airmega 400 Smart Air Purifier.

Do air purifiers really work for pet dander?

Some air purifiers can help reduce pet dander. Choosing an air purifier that features a HEPA filter will be the most effective in this regard. Pet dander typically has a width between 5 and 10 microns, and HEPA filters can remove particles that are as small as 0.3 microns from the air.

Does an air purifier remove the dog smell?

Yes, some air purifiers can remove, or significantly decrease, pet smells. HEPA air purifiers are most effective in this regard since they are able to filter much finer particles than other purifiers. Some air purifiers may include additional filters, often made with carbon, designed to trap odors for enhanced odor control.

Do air purifiers collect dog hair?

Air purifiers may remove some of the dog hair that is floating in the air, but they won’t prevent air from getting stuck on furniture or rugs.

Is an air purifier good for cats?

Yes, air purifiers can help with cat odors and dander. Some stronger air purifiers may help with pet allergies and asthma symptoms enough to allow individuals with mild allergies to still be in a home with cats. However, this will depend on the severity of the individual’s allergies.

What are the advantages of an air purifier if you have pets?

There are many different advantages associated with purchasing an air purifier if you have pets. These include:

• Reducing pet dander, hair, and odors
• Removing other allergens from your homes, such as pollen and bacteria, that could be irritating you or your pets
• Optional add-on features such as sleep modes, enhanced odor control, quiet modes, and indicator lights for filter changes
• Available in different capacities to accommodate large rooms and small rooms
• Some feature a portable design and can be moved between rooms in your home as needed.

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