
Quieter and more efficient than the 211+, with app control.
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Quieter and more efficient than the 211+, with app control.

Large-room Winix with heavy carbon and app; slightly costlier than the T810.

Medium-room Blueair with very low power draw and app.

Efficient medium-room unit; superseded by the 311i Max.

Adds a washable prefilter and a pet-hair mode to the Core 400S formula.

Levoit's flagship with a laser sensor and directional vent; expensive for the CADR.

Two-sided filtration with a real carbon layer; filters cost more than most.

The 5500-2 without the remote and with a lighter carbon filter.

High CADR at a quiet 52 dB maximum; annual filter cost is among the highest here.

5500-class performance with app control.

Airmega 400 with Wi-Fi app control.

A pellet-carbon filter you can wash, strong CADR, and a low street price; PlasmaWave can be switched off.

Tiny bedroom unit with auto mode and app; fine for a small room, not a living room.

211+ with a particle sensor and auto mode.

The long-running benchmark: strong CADR for the price, a real auto mode and cheap annual filters.
High CADR, simple one-button operation, fabric prefilter; no auto mode and short filter life.

Winix's 360 sq ft platform in a taller cabinet with Wi-Fi.

Same internals as the Mighty in a square housing with a square filter.

Quiet for its CADR; the 930 sq ft claim is at 1 air change per hour, so treat it as a 370 sq ft unit for allergies.

Winix publishes a 267 dust CADR (343 sq ft at 5 air changes); smoke and pollen figures are not published, so dust is used for all three. App control and a heavy carbon filter at a mid-range price.

Coway's bedroom unit with auto mode. CADR is derived from Coway's 222 sq ft claim at 5 air changes an hour; no AHAM listing was found.

Rabbit Air's larger unit with app and a laser sensor; premium price.

Compact unit with auto mode and a washable prefilter; filters are pricey for the CADR.

Six-stage filtration and very quiet, but low CADR for the price.

Steel-cabinet workhorse with published test data; no sensor, no app.

Claims five years without a filter change; CADR is manufacturer-claimed and the 1400 sq ft figure is at 1 ACH.