What to know about Windmill Windmill Air Purifier (975 sq ft model)
Why it stands out
Why we like it
It is rated for 202 sq ft and Windmill lists ETL, Energy Star, AHAM Verifide and CARB certifications.
What to know
Score breakdown
Independently measured noise on low or sleep speeds (HouseFresh, Tom's Guide, RTINGS) and how much clean air the unit delivers at a sleep-tolerable level, roughly 45 dB or less. Brand dB claims count for less.
AHAM CADR and 4.8 ACH room rating versus a typical 150–400 sq ft bedroom, plus independent smoke and particle test results.
Dedicated sleep or night mode, display that turns off or dims via a light sensor, no light leakage or beeps, auto mode that doesn't ramp up abruptly overnight, timer.
No ionizer, or one that can be switched off; CARB or zero-ozone verification; true mechanical HEPA versus electrostatic filtration; recalls or labelling disputes.
Annual filter cost, filter life, energy use, availability of genuine filters, warranty.
Street price relative to quiet cleaning delivered for a bedroom.
Windmill Windmill Air Purifier (975 sq ft model) specs
Noise
- Lowest-speed noise (manufacturer)
- 16 dB
- Top-speed noise (manufacturer)
- 52 dB
- Lowest-speed noise (independent measurement)
- 38.4 dBA
Performance
- CADR (smoke where given, else headline)
- 130 cfm
- Recommended room size (4.8–5 ACH / AHAM)
- 202 sq ft
Sleep features
- Sleep / night mode
- Yes
- App control
- Yes
Health & materials
- Ionizer / electrostatic stage
- None mentioned
- Filter type
- 3-in-1 H13 HEPA with activated carbon layer (proprietary)
Running cost
- Main filter life
- 6 months
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Prices and availability may change. The retailer's price and availability at checkout govern the transaction.
| Retailer | Price | Availability | |
|---|---|---|---|
| AmazonLowest | $199.00 | In Stock | View deal |
| Best Buy | Check price at retailer | Check at retailer | Check at retailer |
Based on 3 retailer price observations captured during the last 90 days.