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Air purifiers ยท DREAME

DREAME CVF20B air purifier

Rated for rooms up to 347 sq ft. Puts out 224 cfm of smoke-free air per minute.

Where it ranks

#5 in Best air purifiers for rooms of 300 to 500 sq ft rated most efficient5 models compared#3 in Best low-energy air purifiers for rooms of 300 to 500 sq ft56 models compared#1 in Best low-energy air purifiers for rooms of 300 to 500 sq ft with app control19 models compared

Full specs

Cleaning power

Room size it is rated forThe largest room it cleans well in the certification test.347 sq ft
Clean air per minute: smokeHow much smoke-free air it puts out each minute. Higher cleans faster.224 cfm
Clean air per minute: dustThe same test for dust.223 cfm
Clean air per minute: pollenThe same test for pollen. Matters most for allergies.245 cfm

Running cost

Electricity per yearMeasured use when running all year. Multiply by your power price.149 kWh
Among the most efficient of 2025Yes

Filters

Main filterHEPA-Type

Safety

Ozone it gives offOzone irritates lungs. 0 means none was measured.0 ppb

Features

Automatic modeAn air quality sensor adjusts the speed on its own.No
App controlYes

Source: this model on the ENERGY STAR list, checked 2026-11-09. Model number CVF20B.