DREAMECVF20B
Air purifier
DOE certified smoke CADR
224cfmDOE test
Dust 223 · PM2.5 223 cfm
Effective room size 347 sq ft (DOE)
DOE data as of 2026-11-03DOE record
Does it fit your room? How DOE sizes rooms
DREAME CVF20B: certified to DOE with smoke CADR 224 cfm, dust 223, PM2.5 223, effective room size 347 sq ft. DOE data as of 2026-11-03.
Every model number on this record
Filed with DOE under basic model CVF20B. A listing with any of these numbers is this unit.
| Model number | Filed by |
|---|---|
| CVF20B (DOE basic model) | DREAME |
| CVF54A | DREAME |
How much does the DREAME CVF20B cost to run?
About $2.25 a month, or $27.06 a year, on DOE's annual energy figure of 149 kWh.
Electricity at 18.16¢/kWh, the US residential average for August 2026 (EIA Electric Power Monthly, table 5.6.A). Each 1¢/kWh you pay above or below 18.16¢ moves the yearly figure by $1.49.
How does the DREAME CVF20B rank in its DOE class?
In its DOE class (air purifiers, PM2.5 CADR 150+ cfm), 63 models have a matched Amazon listing. Its CADR/W of 8.8 is 4th of the 63, and 76% above their median of 5.
DOE's annual energy figure for it is 149 kWh, against their median of 266 kWh: $21.25 a year less at the US average price.
Air purifiers for 300 sq ft (44 with a listing)Among 140 air purifiers, PM2.5 CADR 150+ cfm
Smoke CADR (cfm)224
Higher than 58 of 140.
143591 cfm
Efficiency (CADR/W)8.8
Higher than 132 of 140. 1 other shares 8.8.
313.5
Three to compare with
From models with a matched listing.
Within 20 cfm of its size, highest CADR/W
Honeywell HPA4300B229 smoke CADRRoom size 354 sq ft, CADR/W 7.4.
Nearest size in its class with a higher CADR/W
LEVOIT LAP-C511S- 301 smoke CADRWUS Room size 467 sq ft, CADR/W 9.
Nearest bigger unit
Winix C610248 smoke CADRRoom size 384 sq ft, CADR/W 6.2.
DOE record
Air cleaning
- Smoke CADR
- 224 cfm
- Dust CADR
- 223 cfm
- PM2.5 CADR
- 223 cfm
- Effective room size
- 347 sq ft
- Efficiency (IEF)
- 8.8 cfm/W
- Energy use
- 149 kWh/year
Record
- DOE basic model
- CVF20B
- DOE class
- 150 <= PM2.5 Clean Air Delivery Rate
- Brands on the filings
- 1
- In DOE's list since
- 2026-11-02first snapshot we hold
- UPC (ENERGY STAR record)
- 810142565011
- ENERGY STAR record
- CVF20Bcertified 2026-05-07
Questions
- What room size is it for?
- DOE lists an effective room size of 347 sq ft, based on its smoke CADR of 224 cfm: CADR and room size.
- How much does the DREAME CVF20B cost to run for a year?
- About $27.06: DOE's annual figure of 149 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).