Winix 5520 review

The Winix 5520 matches the Coway Airmega Mighty almost spec for spec and adds an app. Winix lists an AHAM Verified room size of 392 sq ft and a CADR of 252 dust, 247 pollen and 253 smoke, slightly ahead of the Coway on every figure. The filter path is a washable fine mesh pre-filter, an AOC carbon filter for cooking and pet odors, and a True HEPA filter, followed by Winix's PlasmaWave stage. On the slowest speed Winix puts noise at 23.5 dB, and a light-sensing sleep mode drops the fan when the room goes dark. The Winix Smart App and Alexa handle remote control. List price is $259.99, but Winix sold it for $199.99 when we checked, which makes it the best CADR per dollar here. Running costs center on Filter Q, which lists at $79.99 and was $49.99 on sale. A 2-year warranty covers the unit. The 13.3 lb tower is a little taller and heavier than the Coway.

Who it is for

living rooms up to 392 sq ft and buyers who want app control

Price

$199.99 on sale, list $259.99, on Winix's US store.

Original price was: $259.99. $ 199.99 Current price is: $199.99.
Quoted from the vendor pricing page on November 13, 2026.

Key features

• AHAM Verified room size of 392 sq ft
• CADR of 252 dust, 247 pollen and 253 smoke
• Washable fine mesh pre-filter, AOC carbon filter and True HEPA filter
• 23.5 dB on the slowest speed
• Wi-Fi and Alexa control with a light-sensing sleep mode

Strengths and weaknesses

• Strength: Highest smoke CADR per dollar on this list at the $199.99 sale price
• Strength: Washable pre-filter cuts what you throw away
• Strength: 2-year warranty
• Weakness: The $259.99 list price is higher than the Coway Airmega Mighty when the sale ends
• Weakness: Replacement Filter Q lists at $79.99 ($49.99 on sale when checked)
• Weakness: 13.3 lbs and 22.17 inches tall, bigger than the Coway Airmega Mighty

Key facts

• CADR (dust/pollen/smoke): 252 / 247 / 253
• Room size: 392 sq ft (AHAM Verified)
• Noise: 23.5 dB on slowest speed
• Replacement filter: Filter Q, $79.99 list
• Warranty: 2 years

Where it ranks

Winix 5520 is No. 2 in our Best Air Purifiers verdict.