Top 6 Best Air Purifiers For Pet Allergies & Asthma – 2020 Update

Nowadays, there have been many new solutions to keep your asthma and pet allergies under control with no medication requirements. And one of the best is investing in an air purifier.

This buying guide will go through all essential features to help you figure out the right model but first, let take a look at these 6 best air purifier for pet allergies and asthma:

  • Germ Guardian AC4825 – Best overall
  • RENPHO Air Purifier – Top rated
  • LEVOIT Vista 200 – Budget-friendly
  • Hathaspace Air Purifier – Best for large room
  • Honeywell HPA300 – Best for extra-large room
  • RabbitAir MinusA2 SPA-780N – Ultra quiet

Germ Guardian AC4825 – Best overall

Germ Guardian AC4825
Germ Guardian True HEPA Filter Air Purifier with UV Light Sanitizer, Eliminates Germs, Filters Allergies, Pollen, Smoke, Dust Pet Dander, Mold Odors, Quiet 22 inch 4-in-1 Air Purifier for Home AC4825E

  • Have earned various certifications for safety, energy efficiency, and performance
  • Can kill germs, viruses, and other toxic objects as small as 0.3 microns or larger


  • Not relatively quiet compared to other similar counterparts
  • The major HEPA filters are quite costly when replacing

Following well-known international standards (such as Carb Compliant, and AHAM Test Report) makes Germ Guardian AC4825 more reliable.

The highlight point of this unit is its 3-in-1 filtration system with additional UV-C light technology. This perfect amalgamation delivers not only a decent removal ability of dust, pollen, and tobacco smoke but also mold spores, germs, and viruses.

If you raise dogs, cats or other pets, rest assured that this beast will eliminate all unpleasant odors in your room while no pet hair on the furniture anymore.

Meanwhile, the device has earned Energy Star to be power efficient, saving you more money in the long term of use.

Product Specs

Efficiency99.97 %, .3 microns
Room coverage167 sq. feet.
Noise level40 – 55 dB

For small rooms, Germ Guardian AC4825 is the best-overall air purifier to leave no pets’ hair, dander or odor.

RENPHO Air Purifier – Top rated

RENPHO Air Purifier
RENPHO Air Purifier for Home Bedroom Allergies and Pets Hair, True H13 HEPA Filter Air Purifier for Large Room 301 SQ.FT, Filters Pollen, Smoke, Dust, Pet Dander, Eliminates Germs, Mold, Odors, Ozone Free

  • Compact, lightweight, and easy to carry around
  • Handy real-time sensor to alert precisely when to replace the filters -> more money-saving
  • Whisper quiet when running


  • No smart home integration (digital screen or Bluetooth)
  • No remote control

The RENPHO air purifier will be a wonderful workhorse to give a totally different feel in your indoor air thanks to its 4-stage air purification.

Contrast to its modest look, this unit can cover a 301-ft2 room while running much more silently than the previous Germ Guardian. Powerful CADR rating of 135 CFM is another big bonus.

The air-quality sensor is also handy. It gauges the air quality to change reasonably the colors and fan speeds. Meanwhile, releasing no ozone or UV-C.

For pet parents, if your dogs or cats are too curious about something new, just rest assured that the air purifier is specifically designed with Child Lock features.

Product Specs

Efficiency99.97% airborne pollutants, 0.3 microns
Room coverage301 sq. ft.
Noise level35 dB
Highlight Features4 Stage Filtration System, Smart Auto Mode, Whisper-Quiet Operation, Quality Assured: No UV-C, No harmful Ozone. Intertek ETL/CARB(California Air Resources Board)/CA PROP 65 certified for sale in California

If you’re finding a compact, lightweight, and easy-to-use air purifier, look no further than the RENPHO air purifier

LEVOIT Vista 200 – Budget-friendly

LEVOIT Vista 200
LEVOIT Air Purifiers for Home Allergies and Pets Hair, H13 True HEPA Air Purifier Filter, Quiet Filtration System in Bedroom, Removes Smoke Odor Dust Mold, Night Light & Timer, Vista 200

  • Have Sleep Mode that runs silently at 26 dB – no disruption to sleep
  • 3 timer settings for 2, 4, or 8 hours to customize the running time
  • Can eliminate VOCs


  • No warning lights to remind you to replace the filters
  • Pre-filters aren’t washable

Not only priced at an affordable range (under $100) but the LEVOIT Vista 200 also keeps a low operating cost, making it the most affordable air purifier in this list.

If you run it continuously 24/7 for an entire year, the unit is claimed to consume 30% less power than other air purifiers. In this case, it’s as little as $6, which is incredibly budget-friendly.

Not to say that the major HEPA filter replacement is under $16.

LEVOIT Vista 200 also highlights a 3-stage filtration system that can efficiently remove pet dander, odor, hair and even the volatile organic compounds (VOCs) in the air.

Product Specs

Efficiency99.97% of fine particles as small as 0.3 microns
Room coverage161 ft²
Noise level26–52 dB
Highlight Features100% ozone free, does not use UV or ions, 3-Stage Filtration, Sleep Mode, 3 Fan Speeds & Timer Settings

With people who have a tight budget, the LEVOIT Vista 200 is the best bet to help you relieve from pets’ hair allergies, living happily with them.

Hathaspace Air Purifier – Best for large room

Hathaspace Air Purifier
Hathaspace Smart True HEPA Air Purifier, 5-in-1 Large Room Air Cleaner & Deodorizer for Allergies, Pets, Asthma, Smokers, Odors – Eliminates Pet Hair, Allergens, Dust, Pollen, Mold, Smoke - HSP001

  • Room coverage of 350 square feet – suitable for medium to large rooms
  • Have ionizer to kill germs, allergens, mold, and bacteria effectively


  • Emit little ozone to the air

Hathaspace Air Purifier is a versatile device for medium to large rooms, maximum of 350 square feet.

It works not only as an air cleaner but also as a deodorizer thanks to the 5-stage air purification. This special system highlights true HEPA filters that can capture 99.97% airborne particles as small as 0.3 microns, such as dust and allergens.

Additionally, it is an ionizer.

It kills germs, mold, and bacteria in the air, helping asthma sufferers relieve many inconvenient symptoms like sneezing, running nose, or shortness of breath.

Product Specs

Efficiency99.97% of particles as small as 0.3 microns.
Room coverage350 sq. ft.
Noise level18 – 43 dB
Highlight FeaturesTrue HEPA filter that captures 99.97% of particles as small as 0.3 microns, SMART AIR QUALITY SENSOR, URIFY LARGE ROOMS – Recommended for small to large size living rooms

In all seriousness, if you want to stay away from asthma and pet allergy symptoms, I highly suggest the Hathaspace Air Purifier.

Honeywell HPA300 – Best for extra-large room

Honeywell HPA300
Honeywell HPA300 True HEPA Air Purifier, Extra-Large Room, Black

  • Made by a reliable brand
  • Room coverage is 465 square feet – suit for extra-large rooms
  • Added turbo clean setting for advanced air purifying capability
  • ACH is 5 times/hour – something that other counterparts for extra-large rooms can’t do


  • Require more filter replacement than the 50250S, which is a bit costlier

When it comes to Honeywell air purifiers, I recommend choosing the HPA300 rather than 50250S for many good reasons.

First off, this model operates far more silently and draws a mere 30% less power than its sibling (133W for the HPA300 while 180W for the 50250S). Not to say that it takes less area in your room.

Featuring a room coverage of 465 square feet, the HPA300 is ideal for extra-large space.

It’s also equipped with a Turbo clean setting to powerfully capture 99.97% particles like smoke, mold, bacteria, and pet dander while removing odors perfectly.

The biggest selling point is its ACH rating – up to 5 times/hours to ensure you’re breathing easily and freshly with fewer allergens.

Product Specs

Efficiency99.97 percent of airborne particles as small as 0.3 microns
Room coverage465 sq. Ft
Noise level43 – 66 dB
Highlight FeaturesRecommended for extra-large rooms (465 square feet), TURBO CLEAN, Easy to Maintain Replacement Filters

If you’re a big fan of Honeywell air purifiers, the HPA300 won’t be a disappointment in terms of purifying extra-large rooms.

RabbitAir MinusA2 SPA-780N – Ultra quiet

RabbitAir MinusA2 SPA-780N
RabbitAir MinusA2 Ultra Quiet HEPA Air Purifier w/WiFi (SPA-780N, White, Pet Allergy)

  • 6-stage filtration system to be more versatile to work
  • Have an exclusive Wi-Fi connection to monitor and adjust the unit from distances
  • Versatile mounting styles – wall-mounted or standing alone


  • A bit heavy
  • The RabbitAir app is just available on Android foundation

If your budget is on the table and has a living space larger than 700 square feet, the RabbitAir MinusA2 SPA-780N is a high-end air purifier that you must try.

This is actually an advanced upgrade from the MinusA2 SPA-700A with higher air-purifying capability, a more powerful motor, and an exclusive Wi-Fi connection.

The best thing about this extra feature is no-fuss communication with your air and the flexibility to adjust or track different functions without moving your ass off the sofa.

Compared to other smart units, this is still superior due to its 6-stage filtration system, 4 customized filters, and the BioGS HEPA technology. The major filters, in this case, are much more durable – 2 years/replacement.

Regardless, it’s one of the quietest version in RabbitAir air purifiers. The last bonus is its versatile mounting styles – wall-mounted or standing alone.

Product Specs

Efficiency99.97%, 0.3 microns
Room coverage815 sq. ft.
Noise level 25.6 to 51.3 dB
Highlight FeaturesAdvanced HEPA filtration with six stages of purification and deodorization, The MinusA2 is designed to either stand-alone or to be mounted on the wall, connect to your WiFi network and control from anywhere with the Rabbit Air App

Made with numerous smart features, especially the ultra-quiet operation, the RabbitAir MinusA2 SPA-780N will make you convinced absolutely.

How to choose a good air purifier for pet allergies and asthma?

Best Air Purifiers For Pet Allergies & Asthma

Filtration system

As the most common causes of pet allergies or asthma are from airborne pollutant particles, the more they are reduced, the better life you’re going to have.

This depends mainly on the filtration system of the air purifier that you intend to choose.

And the most efficient type is HEPA filters – the golden standard in this industry because they can trap various airborne particles as small as 0.1 microns. The efficiency rating can be up to 99.97%.

The reason I don’t suggest ionizers (even though they’re also known for highly efficient airborne particle neutralization) is that:

  • Negatively charged ions they send out to the air
  • Ozone emissions

These two elements are proven by many studies to worsen asthma symptoms, even leading to asthma attacks

About pet allergies, there are many causes:

  • Pet’s odor
  • Pet’s hair & dander

While the pets’ hair and dander are easily eliminated by HEPA filters, the odor needs a specialized filtration to remove it – activated carbon filter.


For asthma and pet allergy sufferers, this feature is more important.

Why? – might you ask.

Just imagine that you’ve got a room of 100 square feet to purify while the device you’ve just bought just offers a space coverage of 50. This apparently means the air purifier fails to adequately clean your room, making it not only useless but also money wasting.

Therefore, after identifying the room that you want to use the device in, calculate its area (width x length) and compare it to the room coverage on the purifier’s specification table.

Other Features

These features are just optional for extra convenience:

  • Fan speed settings: The more options, the more flexible to adjust and custom to specific air condition, giving more efficiency.
  • Automatic operating mode: It features a special sensor to “communicate” the indoor air condition and accordingly, adjust the lights and fan speeds to work on it.
  • Remote control: This usually includes a Wi-Fi connection feature to let you track and adjust the device’s functions from distances.
  • Night Mode: This allows you to turn off the air purifier and slower the fan speed when you sleep at night

Best air purifier brands

Best Air Purifiers For Pet Allergies & Asthma


The #1 brand recommended for allergists and asthma sufferers because not only they’re a well-known company but also their products are always equipped with true HEPA filters and activated carbon filters.

Germ Guardian

Germ Guardian is a brand specialized in small appliance-based solutions. Now, it is one of the world-leading companies that focus on manufacturing only air purifiers with safety and innovative technologies.


RENPHO is a 2015-established company based in California, known as a leading innovator of air purifiers that follow the international quality standards with the highest quality standards.


A younger brand is LEVOIT, which was founded in 2017, headquartered in breezy Orange County and sooner widely recognized for many successful air purifier campaigns. The strengths in their products are unstoppable product development, innovation, and rapid designs.


Founded in 2004, RabbitAir is a senior in this industry with many achievements and awards. While focusing on the products’ quality, technology applications, and designs, they’re also trustful through friendly customer services.


Best Air Purifiers For Pet Allergies & Asthma

Do air purifiers help allergies and asthma?

Air purifiers exactly can cure asthma symptoms and allergies as they can capture small airborne particles and clean the air.

Do you run an air purifier all day?

Asthma sufferers should run their air purifier 24/7 if you’re always at home because clean air can be re-polluted within 3-5 hours if not re-cleaned by the device.

If you intend to leave your house for a long time, turn it off for energy saving but once coming back home, let it run at the highest mode for at least 1-3 hours depending on your room area. Then, decrease it to medium or low mode.

Can you run an air purifier and humidifier at the same time?

Yes, you can.

It’s because humidifiers and air purifiers do very different things. The humidifiers increase the humid level in the air while the purifiers clean out the pollutants.

Do HEPA filters dry out the air?

No, they don’t

HEPA filters just take a role of remove airborne pollutants to give you only fresh air. It’s designed without any evaporators to dry out the air.

How long does it take an air purifier to clean a room?

It depends on three things:

  • Fan speed
  • Types of filtration system
  • How much polluted air of your room
  • Room area

To help you easily get the idea, here is an example.

If you use a true HEPA filter air purifier to clean a 100-feet-square room with the general polluted condition, it will take around 30 minutes to 1 hour to clean it thoroughly.


Air purifiers, they are not only perfect prevention but also a non-medicated cure for your asthma symptom or pet allergies. Choosing a good model, on the other hand, saves lots of filter and energy costs while reducing noise efficiently.

That’s why I hope the list of 6 best air purifiers for pet allergies and asthma above is helpful to you. Thanks for reading!

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