WINIX 5510 Air Purifier (New Generation of 5500-2 with App Support) for Home Large Room Up to 1881 Ft² in 1 Hr, True HEPA, High Deodorization Carbon Filter and Auto Mode, Captures Pet Allergies, Smoke

Why it's worth it

The WINIX 5510 is the newer version of the well-liked 5500-2, now with app control. Its AHAM-verified CADR of 392 covers a genuinely large room, and the heavy-duty carbon filter handles pet and cooking odors better than most purifiers at this size.

The performance numbers here are verified, not estimated. AHAM certification uses a standardized protocol, so a CADR rating carries the same meaning across brands. Winix lists 392 square feet verified, with coverage up to 1,881 square feet in an hour. That's rare in a category where most coverage claims come straight from the manufacturer with no outside check. If you want to compare apples to apples, start with the units that publish verified figures.

The carbon filter is built for households that smell like households. Standard activated carbon saturates fast against persistent pet-waste ammonia and cooking smoke. Winix uses a denser deodorization carbon that keeps working on those loads longer. If you have a litter box, a dog bed, or a kitchen that sees a lot of frying, this is the pick that addresses odor and airborne dander at the same time.

From our review of 12 air purifiers for allergies, by David Sinclair, Managing Editor

What we like

• +The performance numbers here are verified, not estimated
• +The carbon filter is built for households that smell like households
• +App support is the upgrade over the old model
• +It handles a whole living room, which is where allergens actually accumulate

What to know

• –PlasmaWave produces trace ozone, and you should turn it off
• –It's a tall, wide box