How much space can it clean?

The maker rates it for areas up to about 65 m³, roughly a small bedroom or office. It is not meant for a living room or open floor plan.

The rated noise is up to 36 dB, and sleep mode is claimed to drop to about 22 dB. Higher fan speeds are noticeably louder.

Does it need to stay plugged in?

No. It has a built-in battery and charges over USB-C, so you can move it between rooms without a cord.

What filter does it use?

It uses a rectangular PM2.5 filter block that slides into the body. The maker claims over 90% filtration efficiency for dust, pollen, smoke and pet hair.

Does it have an auto mode or air quality display?

No. You pick one of three fan speeds yourself; there is no sensor-driven auto mode.

What comes in the box?

The purifier, one filter block and a USB-C cable. A power adapter is not listed.

Where is the Portable USB Desktop Air Purifier cheapest?

At Deal.ai, for $44.99, as of our latest check.

Free shipping on everything10% off your first orderNo account needed · Buy 2, save 10% · 3+, save 15%

Portable USB Desktop Air Purifier

Trending on TikTok Shop: 5.2K sold there

Sold and shipped by Deal.ai

$44.99Free shipping

Buy 2, save 10% · 3+, save 15%

Extra 10% off your first order

Color: White

Power: USB

Arrives about Nov 22 – Dec 2, from a warehouse in China

How many?

30-day full refund: if you're not happy with it for any reason, or it never arrives, tell us within 30 days and we refund you in full. Shipping and refunds