Best air purifier for pets
Pet homes need three things from a purifier: enough clean-air delivery for the room, a pre-filter that catches hair before it clogs the HEPA, and carbon for odors.
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How this page was made: our picks are based on manufacturer specifications (product pages, manuals and spec sheets, all linked below) and aggregated owner reviews. We have not tested these products hands-on, and we do not publish invented test results, scores or star ratings. Read our methodology.
Pet dander is made of tiny particles that stay airborne, while pet hair is large and settles quickly. A good purifier for a pet home has a True HEPA filter for dander, a pre-filter that catches hair and is easy to clean, and activated carbon for odors. It also needs enough CADR for the room. We compared five purifiers on those specs. Picks are based on specs plus aggregated owner reviews; we did not test them.
Quick picks
Spec comparison
| Model | CADR (dust) | Room size | Pre-filter | Carbon | Pet filter option | Power |
|---|---|---|---|---|---|---|
| Winix 5500-2 | 243 CFM | 360 ft² | Fine-mesh pre-filter | Washable AOC carbon | Standard filter set | 70W |
| Levoit Core 400S | 231 CFM (single CADR) | 358 ft² | Yes | Activated carbon | See Levoit filter options | 38W |
| Coway Airmega 250 | 261 CFM | 465 ft² at 4 ACH | Washable pre-filter | In Max2 filter | Standard filter | 64W |
| Coway AP-1512HH Mighty | 246 CFM | 361 ft² | Washable pre-filter | Deodorization filter | Standard filter | 77W |
| Levoit Core 300S | 141 CFM (single CADR) | 219 ft² | Yes | Activated carbon | Core 300-P-RF-PA Pet Allergy | 23W |
The picks in detail
Winix 5500-2
The Winix 5500-2 combines a fine-mesh pre-filter, a True HEPA filter and an AOC carbon filter that Winix describes as washable, which matters in a pet home where odor filters load up quickly. Winix rates it at 243 CFM for dust, 246 for pollen and 232 for smoke, covering 360 ft² at 4.8 ACH. It has 5 fan speeds, an auto mode with an air-quality indicator and a 2-year warranty. The optional PlasmaWave ionizer can be switched off.
Pros
- Washable carbon filter for pet odors
- Separate dust, pollen and smoke CADR
- HEPA and carbon rated for up to 12 months
- 2-year warranty
Cons
- 70W at top speed
- No app
- Taller than most (23.6 in)
Levoit Core 400S
The Levoit Core 400S pairs a 3-stage filter (pre-filter, True HEPA, carbon) with a laser PM2.5 sensor that ramps up the fan in auto mode, useful when a dog shakes off or a litter box gets stirred up. Levoit lists 231 CFM and 358 ft² at 4.8 ACH, 38W rated power and Wi-Fi app control. Levoit sells several replacement filter versions for its Core range.
Pros
- Auto mode with a laser PM2.5 sensor
- App control and schedules
- Low 38W rated power
- No ionizer
Cons
- CADR figures differ across Levoit documents
- Combined filter means replacing everything at once
Coway Airmega 250 (AP-1720H)
The Coway Airmega 250 has the highest dust CADR here at 261 CFM, with a washable pre-filter and Coway’s Max2 filter (activated carbon plus True HEPA). Coway rates it for 465 ft² at 4 ACH. It has Smart, Sleep and Eco modes; the 250S version adds Wi-Fi. At 20.5 lb, it’s a larger floor unit.
Pros
- Highest dust CADR here (261 CFM)
- Washable pre-filter for pet hair
- Smart mode adjusts automatically
Cons
- Heavy (20.5 lb)
- Room size quoted at 4 ACH, not 4.8
- No Wi-Fi on the base model
Coway Airmega AP-1512HH (Mighty) (AP-1512HH)
The Coway Mighty uses four stages: a washable pre-filter, a deodorization filter, True HEPA and an ionizer that can be turned off. Coway lists 246 CFM for dust and 361 ft² at 4.8 ACH. It has a 1/4/8-hour timer and no Wi-Fi.
Pros
- Dedicated deodorization filter
- Washable pre-filter
- Simple controls
Cons
- Deodorization filter rated for about 6 months
- 77W rated power
- Ionizer stage (can be switched off)
Levoit Core 300S
For a bedroom where a pet sleeps, the Levoit Core 300S (141 CFM, 219 ft² at 4.8 ACH) is sized right, and Levoit sells a Pet Allergy replacement filter (Core 300-P-RF-PA) for it. It has app control and a low 22 dB setting.
Pros
- Pet Allergy filter option
- Quiet 22 dB low setting
- Compact 8.7 in footprint
Cons
- Too small for living rooms
- Power and weight figures differ between Levoit documents
Also considered
A purifier doesn’t replace vacuuming: hair settles quickly on floors and furniture. Pair one with a vacuum that handles pet hair; see our robot vacuum guides.
Who should buy what
- Dogs or cats in a living room up to about 360 ft²
The Winix 5500-2 or Levoit Core 400S. Pick Winix for the washable carbon filter, Levoit for the app.
- Large or open-plan space
The Coway Airmega 250 has the most clean-air delivery here.
- Pet allergies in the bedroom
The Levoit Core 300S with its Pet Allergy filter.
- You want no app and no setup
The Coway Mighty or Winix 5500-2.
What matters in an air purifier for pets
- CADR for the room. Aim for about 4–5 air changes per hour. Dust CADR is the most relevant figure for dander.
- Pre-filter. Hair clogs filters quickly. A washable or vacuumable pre-filter protects the HEPA layer.
- Carbon. Only activated carbon helps with odors. Heavier carbon filters last longer in pet homes.
- Running cost. Pet homes go through filters faster than manufacturers’ typical estimates. Check replacement filter prices.
Frequently asked questions
Do air purifiers help with pet allergies?
A True HEPA purifier captures airborne dander particles. It works best alongside cleaning, washing pet bedding and keeping pets out of bedrooms if allergies are severe.
Will an air purifier remove pet hair?
Some airborne hair is caught by the pre-filter, but most hair falls to the floor. Vacuuming is still needed.
Do air purifiers remove litter box smells?
Activated carbon helps with odors. The Winix 5500-2 and the Coway Mighty have dedicated carbon or deodorization filters; Levoit’s Core filters include carbon in the combined filter.
How often should I change filters with pets?
Manufacturers’ intervals (for example, up to 12 months for the Winix 5500-2) assume typical use. With pets, check the pre-filter weekly and expect to replace filters sooner.
Did you test these purifiers?
No. These picks are based on manufacturer specifications and aggregated owner reviews. See how we research.
Sources
Specifications were checked against the manufacturer pages, manuals and spec sheets below in October 2026. Makers revise specs and sell regional variants, so confirm the exact model number before you buy. We do not list prices because they change daily; use the retailer link to see the current price.
Keep reading
Levoit vs Winix air purifier: Core 400S vs Winix 5500-2
Both are rated for a roughly 360 ft² room at 4.8 air changes an hour. One is an app-connected tower, the other a button-driven box with a washable carbon filter.
Read the comparison Head to headAir PurifiersLevoit vs Coway air purifier: Core 400S vs Airmega AP-1512HH (Mighty)
Near-identical clean-air ratings, very different designs. Here’s how Levoit’s smart tower and Coway’s long-running Mighty compare, and which suits your room.
Read the comparison ReviewAir PurifiersCoway Airmega 250 review
A larger Coway for open-plan rooms, with a washable pre-filter.
Read the comparison