# Coway Airmega Jet HEPA Air Purifier, CADR 402 m3/h, Allergy UK Approved

Source: https://www.ranked10.co.uk/home/best-air-purifier/coway-airmega-jet-air-purifier
Ranked #4 in "Best Air Purifier 2026: 10 Ranked on Real Air Changes": https://www.ranked10.co.uk/home/best-air-purifier

- Price: £279.99 (checked on Amazon UK on 2026-09-10)
- Amazon rating: 4.2 from 436 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B08Z13YT8Q?tag=ranked10-21

The Airmega Jet quotes the highest CADR in this ranking at 402 cubic metres per hour, and the listing pairs that with the most thorough particle figure too: a 0.01 micrometre retention size on a HEPA filter, in a machine covering up to 104 square metres with a noise level given as 20 decibels and 50 watts of draw. It weighs 8.7 kilograms and stands 71.7 centimetres tall.

The listing names MegaJet technology for adjustable airflow and a GreenHEPA filter system, and refers to ECARF testing for allergy friendliness. At the time of collection it carried 436 ratings at 4.2 stars, so the evidence is thinner than its specification. Everything here comes from the Amazon listing rather than our own testing.

## Specification

| Field | Value |
|---|---|
| Power Source | Corded Electric |
| Control Method | Touch |
| Filter Type | HEPA |
| Floor Area | 104 Square Meters |
| Noise Level | 20 Decibels |
| Particle Retention Size | 0.01 Micron |
| Controller Type | Button Control |
| Wattage | 50 watts |
| Contaminant Filtration Capability | True |
| Special Features | MegaJet technology for adjustable airflow, GreenHEPA filter system for effective particle removal, ECARF tested for allergy friendliness |
| Filter Class | HEPA |
| Item Dimensions D x W x H | 19.6D x 37.6W x 71.7H centimetres |
| Item Weight | 8.7 kg |
| Colour | Silver |
| Brand Name | Coway |
| Model Number | AP-1220B |
| Global Trade Identification Number | 08809466829116 |
| Number of Packs | 1 |
| Item Highlight | BAF (Allergy UK) Certified, MegaJet Targeted/Wide Airflow, CADR 402 m³/h, 20 dB Sleep Mode, for Dust, Pollen, Pets & Smoke |
| Unit Count | 1.0 count |

## Questions people ask

**What CADR is listed?**

402 cubic metres per hour, the highest in this ranking.

**What is the particle retention size?**

0.01 micrometres.

**What room size is listed?**

Up to 104 square metres.

**What airflow technology is named?**

MegaJet, for adjustable airflow.

**How many ratings does it have?**

436 at the time of collection, averaging 4.2 stars.