LEVOITLAP-B851S-WNA
Air purifier
DOE certified smoke CADR
85cfmDOE test
Dust 90 · PM2.5 87 cfm
Effective room size 132 sq ft (DOE)
DOE data as of 2026-11-03DOE record
Does it fit your room? How DOE sizes rooms
LEVOIT LAP-B851S-WNA: certified to DOE with smoke CADR 85 cfm, dust 90, PM2.5 87, effective room size 132 sq ft. DOE data as of 2026-11-03.
Every model number on this record
Filed with DOE under basic model LAP-
| Model number | Filed by |
|---|---|
| LAP- | LEVOIT |
| LAP- | LEVOIT |
| * can represent different character or can be blank. All models are identical with each other except the model name. | LEVOIT |
How much does the LEVOIT LAP-B851S-WNA cost to run?
About $1.36 a month, or $16.34 a year, on DOE's annual energy figure of 90 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 90¢.
How does the LEVOIT LAP-B851S-WNA rank in its DOE class?
In its DOE class (air purifiers, PM2.5 CADR 10 to 99 cfm), 42 models have a matched Amazon listing. Its CADR/W of 5.7 is 7th of the 42, and 70% above their median of 3.35.
DOE's annual energy figure for it is 90 kWh, against their median of 94.5 kWh: 82¢ a year less at the US average price.
Air purifiers (133 with a listing)Among 90 air purifiers, PM2.5 CADR 10 to 99 cfm
Smoke CADR (cfm)85
Higher than 83 of 90.
1993 cfm
Efficiency (CADR/W)5.7
Higher than 79 of 90.
1.914
Three to compare with
From models with a matched listing.
Within 20 cfm of its size, highest CADR/W
Blueair 313100010069 smoke CADRRoom size 107 sq ft, CADR/W 8: about 29% less power for the same clean air.
Nearest size in its class with a higher CADR/W
Byzeng APH200-22J6 78 smoke CADRRoom size 121 sq ft, CADR/W 5.8.
Nearest bigger unit
Bionaire BAP0041UV106 smoke CADRRoom size 164 sq ft, CADR/W 2.7.
DOE record
Air cleaning
- Smoke CADR
- 85 cfm
- Dust CADR
- 90 cfm
- PM2.5 CADR
- 87 cfm
- Effective room size
- 132 sq ft
- Efficiency (IEF)
- 5.7 cfm/W
- Energy use
- 90 kWh/year
Record
- DOE basic model
- LAP-
B851S- WNA - DOE class
- 10 <= PM2.5 Clean Air Delivery Rate < 100
- Brands on the filings
- 1
- In DOE's list since
- 2026-11-02first snapshot we hold
- UPC (ENERGY STAR record)
- 810123673483
- ENERGY STAR record
- LAP-B851S-WNAcertified 2025-07-24
Questions
- What room size is it for?
- DOE lists an effective room size of 132 sq ft, based on its smoke CADR of 85 cfm: CADR and room size.
- How much does the LEVOIT LAP-B851S-WNA cost to run for a year?
- About $16.34: DOE's annual figure of 90 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).