COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and HEPA Filters for Dual Purification, AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B) vs Noctua NF-A14 PWM, Premium Quiet Fan, 4-Pin (140mm, Brown)
Side-by-side comparison based on Reddit community data

#8 in Air Purifiers
Coway
COWAY Air Purifiers for Large Room Whole Home Up to 4,253ft², 2 Sets of XL Washable Pre-Filters and HEPA Filters for Dual Purification, AQI, Turbo Mode, Timer, Wheels, 5yr Warranty, ProX(B)
$999.00
100/100Excellent
100% positive0% neutral0% negative
Pros
- +More effective
- +Filters smoke
- +Filters vocs
- +Carbon filter
- +Made for large spaces
“More recently, I bought a Coway Airmega ProX, which seems to be more effective for me. It’s a big filter that is made for large spaces and it filters smoke and VOCs with a carbon filter.”

#10 in Air Purifiers
Noctua
Noctua NF-A14 PWM, Premium Quiet Fan, 4-Pin (140mm, Brown)
$24.95
100/100Excellent
100% positive0% neutral0% negative
Pros
- +Chosen for an upgrade
- +Part of a good combo of parts
“It will have 4 Noctua NF-A14 fans as exhaust, 8 as intake.”