Best Air Filter for Cat Litter Dust and Odor

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When you have cats, you have to put in a little more effort to keep your home smelling fresh. Since cat litter can produce dust, having something that can remove the particles from the air is important. The right air purifier for cat litter dust and odor can promote a healthier and cleaner home environment.

Why a HEPA Filter Matters

The best air purifiers have a HEPA filter. This filter type is capable of capturing particles as small as 0.3 microns. They take approximately 99.9 percent of these particles from the air and trap them firmly so that they cannot get released back into the air.

These filters are relatively long-lasting. Even with regular use, you do not have to replace them often, allowing you to maintain air free from cat litter dust and odor with minimal effort.

Best Air Purifier for Cat Litter Dust and Odor

Air Purifier HEPA FilterCoverageWeight
#1. GermGuardian
3-in-1 Air Purifier
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Yes150 Square Feet8.5 Pounds
#2. Alen T500 Tower Air Purifier

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Yes500 Square Feet9 Pounds
#3. Rabbit Air MinusA2

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Yes700 Square Feet19 Pounds
#4. Alen BreatheSmart

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Yes1,100 Square Feet21 Pounds
#5. AirMega 400S

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Yes1,560 Square Feet24 Pounds

Picking the Right Size

It is important that your air purifier can handle the size of your space. Some are large enough to cover over 1,000 square feet, so if your home is relatively small or you live in an average apartment, one unit is enough to purify the air throughout the entire structure.

If you have a larger space or a lot of walls, you might consider buying two or more smaller units. Just make sure that the units you are using are located close to your litter boxes.

Understanding Filtration Rates

There are three filtration rates to know about. You will use this information to make sure that you are using the air purifier that best fits your needs. The rates include:

  • Air changes per hour: This describes how much air the device can filter each hour. For things like dust particles, you want a unit with a high ACH.
  • Minimum efficiency reporting value: This shows you how efficient your filter is. For cat litter dust and odor, you want a unit with a MERV of 10.
  • Clean air delivery rate: This tells you how much clean air the device will release into your room each minute. Ideally, you want one with a CADR of 350 or higher.

Proper Placement of Your Air Purifier

Since you are using the air purifier to eliminate cat litter dust and odor, you want to make sure that you have your unit within 20 feet of your litter box. If there is more than one litter box in your home, you might need more than once device, depending on the area it can cover, the size of your home and the layout of your space.

Getting the Most from Your Air Purifier

When you are using an air purifier, there are other things that you can do to help reduce cat litter dust and odor throughout your home. These include:

  • When you are using the device, keep your home’s doors and windows shut so that it is only recirculating the air inside your home
  • Keep your litter box scooped and change the litter at least once a week
  • Consider a cat litter that puts out a low level of dust
  • Make sure to change your air purifier’s filter according to the recommendation in the user’s manual
  • Keep your air purifier clean and make sure that the vents are free from debris and dust

The Top Air Purifiers for Cat Litter Odor and Dust

Being able to keep your home smelling fresh and free from cat litter dust makes the air healthier. This is especially important for anyone with allergies or asthma. However, to get the most benefit from this type of product, you need to pick the best one for your home.

#1. GermGuardian 3-in-1 Air Purifier

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The GermGuardian 3-in-1 Air Purifier operates quietly and it is a small unit. This allows you to place it anywhere without disturbances. When you are sleeping, you can use this as a white noise machine when it operates at the lowest setting.

Notable Features

  • Viruses and bacteria are killed by the UV-C light
  • 99.9 percent of airborne particles are eliminated

This air purifier has a true HEPA filter and it contains activated charcoal. Because of this, it eliminates almost all impurities and ensures that the air in your home smells fresh too.

There are three speed settings so that you can control the level of purification you need at a specific time. To ensure healthier air in your home, you can use the UV-C light. This is optional, so you only need to run it when you absolutely need it to increase this unit’s overall efficiency.

#2. Alen T500 Tower Air Purifier

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The Alen T500 Tower Air Purifier is a compact unit that you can put in a table or on the floor. It is quiet and efficient, allowing you to clean your air without noise disturbances or a lot of energy usage.

Notable Features

  • It is Energy Star certified
  • This unit is very small, so it can fit almost anywhere

It uses a pure HEPA filter, ensuring air that is clean and free from dust, allergens and pet dander. While removing impurities from the air, it also promotes an environment that smells better.

To ensure the freshest air, it also comes equipped with an ionizer. It can remove particles as small as 0.3 microns to trap almost everything. There are three fan speeds so that you can get the level of purification that you need for the space.

#3. Rabbit Air MinusA2

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The Rabbit Air MinusA can go into your bedroom since it is so quiet that it will not disturb your sleep. You can choose to set it on a surface or mount it to a wall, depending on your preferences.

Notable Features

  • It has a six-stage filter
  • The device operates very quietly

The filter on this unit works in six stages. Not only does it trap 99.9 percent of particles and allergens, but it also deodorizes while it is working. When you are using this device, your home’s air is cleaner and your house will smell better, even if you have multiple litter boxes.

It can cover an entire floor of a smaller home. Due to the filter that uses Germ Defense technology, this air purifier also helps to reduce airborne bacteria by trapping it and not allowing it to be released back into the air.

#4. Alen BreatheSmart

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The Alen BreatheSmart effectively takes care of dust and odor from cat litter boxes due to its filter options. Due to its size and design, you can easily fit it into any room in your home.

Notable Features

  • It does not get louder than 56 decibels
  • There are four filter type options

This air purifier not only cleans the air, but it also helps to promote sleep. This is due to the pink, red and white noise capabilities of the device. It also has the ability to detect allergens so that it can make adjustments automatically to clean the air as effectively as possible.

It was designed to work in an open concept home, allowing you to cover most smaller homes with a single unit. In most average homes, it can cover an entire floor to keep your air clean and free from litter box odors and dust.

#5. AirMega 400S

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The AirMega 400S can cover a large area, making it a good choice when you have more than one litter box in a space. In addition to aiding with litter box dust and odor, it also helps to remove pet dander, making it a good choice in homes where allergies are a concern.

Notable Features

  • There are multiple fan speeds
  • You can check the pollution indicator with an app

This device has a timer, allowing you to schedule operation times. Its pre-filter is washable so that you do not have to purchase a new one every time it gets dirty. Instead, just wash it and put it back into the device.

This air purifier adapts to its surroundings due to the smart mode setting. This ensures that the fan is operating at the best speed for the air quality in the environment to make sure that the air is as clean as possible.


When you are purifying the air, any cat litter odors or dust that does get into the air are promptly eliminated. This helps to keep the air in your home cleaner and easier to breathe. It also ensures that your home smells fresher, even if you have more than one cat.

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