Atmosphere Sky 120539CH
Room air purifier · suggested up to 489 sq ft · True HEPA (H13) + activated carbon
A room air purifier rated to clear 316 CFM of smoke-sized particles — enough for a room up to about 489 sq ft.
Buy this purifier
No verified retail listingwe only link a listing we matched to this exact AHAM-certified model
Atmosphere Sky 120539CH room air purifier
Search the model number above at your usual retailer, then check what you find against the certified AHAM figures on this page.
Closest model we can link on Amazon: the Dreo Home DR-HAP003AS. It is a different purifier: smoke CADR 294 vs 316 for this one, rated for rooms up to 456 sq ft.
See the Dreo Home DR-HAP003AS on Amazon →At a glance
Who it's for
Large living rooms and open-plan spaces that need real air-cleaning power.
The standout number
Smoke CADR of 316 — the number that decides how fast it clears wildfire smoke and fine particles.
The catch
The carbon filter that handles odors and gases wears out faster than the HEPA — budget for replacements.
What size room does the Atmosphere Sky 120539CH cover?
AHAM certifies it for rooms up to 489 sq ft. In a room that size it cleans the air about 4.8 times an hour on its top speed (our math: 316 smoke CADR x 60 / the room volume, with 8-foot ceilings). In a room half that size (245 sq ft) it would clean the air about 9.7 times an hour.
The Verified Label — every AHAM-tested spec
not ENERGY STAR
US market
Clean Air Delivery Rate (CADR) — source: AHAM
Coverage & power — source: AHAM (+ computed)
Filter & identity
How it ranks
Where this unit sits among the 236 room air purifiers we track, on the two numbers that decide one: how fast it clears fine smoke particles, and how big a room it covers. A higher percentile is better.
Smoke CADR
Better than 89%
of the 236 units with a published smoke CADR
Suggested room size
Better than 89%
of the 236 units with a published room size
Compare similar air purifiers
Frequently asked questions
How big a room does the Atmosphere Sky 120539CH cover?
AHAM suggests it for a room up to 489 square feet. That rating assumes it runs on high and cleans the air about 4.8 times an hour. For faster cleaning — say for wildfire smoke or allergies — size it to a smaller room than the maximum.
What is the CADR of the Atmosphere Sky 120539CH?
Its AHAM Clean Air Delivery Rate is 304 for dust, 316 for smoke and 329 for pollen, with a PM2.5 CADR of 310. CADR is cubic feet of clean air delivered per minute — higher clears a room faster.
Does the Atmosphere Sky 120539CH use a real HEPA filter?
Its filter is listed as True HEPA (H13) + activated carbon. True HEPA captures 99.97% of particles down to 0.3 microns. The activated-carbon layer also helps with odors and gases.
How much power does the Atmosphere Sky 120539CH use?
About 42.1 watts on its smoke-clearing setting, which works out to 7.5 CADR per watt — a measure of how much clean air you get for the electricity it draws. It is not ENERGY STAR certified.
Where can I buy the Atmosphere Sky 120539CH?
We haven't matched a retail listing to this exact AHAM-certified model, so we don't link one — AHAM model numbers often differ from the name a retailer sells it under. Search the model number above at your usual retailer and check what you find against the certified figures on this page. The replacement filters are the recurring cost — check those before you commit to a brand.
Sources. Clean Air Delivery Rate (dust / smoke / pollen), PM2.5 CADR, suggested room size, ENERGY STAR status and power draw come from the AHAM Verifide air-cleaner directory (the industry's independent CADR test). Average CADR, clean-air-per-watt and the percentile figures are computed by Verified HVAC Data from those published ratings. We publish no star ratings and take no payment for placement. "Not published" means AHAM's record doesn't disclose it — we never fill a spec with a guess.