# Winix 5500-2 Air Purifier, CADR 390 m3/h, 4-Stage Filtration, PlasmaWave

Source: https://www.ranked10.co.uk/home/best-air-purifier/winix-5500-2-air-purifier
Ranked #1 in "Best Air Purifier 2026: 10 Ranked on Real Air Changes": https://www.ranked10.co.uk/home/best-air-purifier

- Price: £159.00 (checked on Amazon UK on 2026-09-10)
- Amazon rating: 4.6 from 27,504 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B01D8DAYII?tag=ranked10-21

The Winix 5500-2 leads this ranking on both specification and evidence. The listing quotes a CADR of 390 cubic metres per hour with four-stage filtration and PlasmaWave, a HEPA filter class, a 0.1 micrometre particle retention size, a 27.8 decibel noise figure and 70 watts of power draw, in a 6.7 kilogram body measuring 20.8 by 38.1 by 59.9 centimetres, with remote control.

CADR is the number worth comparing between purifiers, because it describes how much clean air the machine actually moves rather than how large a room the box claims. This one is among the highest here and, at 70 watts, also among the thirstier machines. At the time of collection it carried 27,504 ratings at 4.6 stars. Everything here comes from the Amazon listing rather than our own testing.

## Specification

| Field | Value |
|---|---|
| Power Source | Corded Electric |
| Control Method | Remote |
| Filter Type | HEPA |
| Floor Area | 360 Square Feet |
| Noise Level | 27.8 Decibels |
| Particle Retention Size | 0.1 Micrometer |
| Controller Type | Button Control |
| Wattage | 70 watts |
| Contaminant Filtration Capability | Cigarette Smoke, Dust, Odors, Pet Dander, Pet Hair, Pollen, Volatile Organic Compounds (VOCs), Wildfire Smoke |
| Special Features | Manual, Portable, Programmable, Washable Filter |
| Filter Class | HEPA |
| Item Dimensions D x W x H | 20.8D x 38.1W x 59.9H centimetres |
| Item Weight | 6.7 kg |
| Specification Met | AHAM Certified, Allergy Certified, CE Certified, Certified HEPA, RoHS Certified, UKCA Certified |
| EU Spare Part Availability Duration | 5 Years |
| Brand Name | Winix |
| Model Number | 5500-2 |
| Manufacture Year | 2025 |
| Global Trade Identification Number | 08809154399167 |
| Number of Packs | 1 |

## Questions people ask

**What CADR is listed?**

390 cubic metres per hour.

**How many filtration stages?**

Four, with PlasmaWave named.

**What is the particle retention size?**

0.1 micrometres.

**What is the listed noise level?**

27.8 decibels.

**How many ratings does it have?**

27,504 at the time of collection, averaging 4.6 stars.