Lease-safe air for small apartments.
Portable, no-install guides for renters who cannot open a window or drill a hole.
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A small room
Studio or small room
One portable HEPA sized to a room you can measure. Not a house-sized trophy.
Levoit Core 300-P
Portable HEPA for a small room. Levoit lists 222 ft² at 4.8 air changes per hour (Oct 2026).
Check price on Amazon: Levoit Core 300-PNamed machines
Levoit vs Coway
Three portable boxes. No forever winner. Manufacturer specs, checked October 2026.
Levoit Core 300-P
Portable HEPA for a small room. Levoit lists 222 ft² at 4.8 air changes per hour (Oct 2026).
Check price on Amazon: Levoit Core 300-P
Levoit Core 400S-P
Larger Levoit. Levoit lists 358 ft² at 4.8 ACH; manual CADR smoke 231 / dust 240 / pollen 259 CFM.
Check price on Amazon: Levoit Core 400S-PCoway AP-1512HH Mighty
Denser apartment box. Coway lists 361 ft² at 4.8 ACH, CADR 233/246/240.
Check price on Amazon: Coway AP-1512HH MightyA log, not a lab
Monitor / mold
A portable reading, or a dish you can date. Neither is a diagnosis.
Airthings View Plus
Portable 7-sensor log (radon, PM2.5, CO2, VOC, humidity, temp, pressure).
Check price on Amazon: Airthings View Plus
Evviva Sciences 10-dish kit
More dishes; optional lab. Not a diagnosis.
Check price on Amazon: Evviva Sciences 10-dish kitAlso in this issue