Winix
Winix AT40 All-in-One 4-Stage True HEPA Wi-Fi Large Room Air Purifier
- Coverage 410 square feet
- Runtime 30 min
£209.99
£187.99
● In stock
Flat £45 UK delivery 14-day right to cancel 12-month warranty minimum

Advanced 4-Stage Filtration with PlasmaWave® Technology Fine Mesh Pre-Filter Your first line of defense against large airborne particles.
Plus flat £45 UK delivery per order.
In stock. Delivered in 3–7 working days
Fine Mesh
Pre-Filter
Your first line of defense against large airborne particles.
Advanced Odor Control (AOCTM) Filter
Utilizes effective carbon pellets to remove odors, outperforming traditional carbon-coated mesh.
True HEPA*
Filter
Removes 99.99% of particles at 0.1 – 0.3 microns*
PlasmaWave®
Technology
Breaks down pollutants at the molecular level without producing harmful ozone.
Control your unit from anywhere at anytime. Instantly access your unit with the
Winix Smart App through the convenient Wi-Fi feature.
Winix PlasmaWave® Technology ensures
clean, crisp air for you and your family.
LED light changes in real time, based on the air quality.
When the room’s ambient light decreases, the Winix 5510 automatically enters Sleep
Mode, dimming the LEDs and reducing fan speed for quieter operation. As the light
levels increase, the 5510 returns to Auto Mode for continuous air purification.
AHAM certified air purifiers are tested and proven for their ability to remove smoke, dust, and pollen from the environment.
UL certified means that the product meets specific, defined requirements that are often based on UL’s published and nationally recognized Standards for Safety.
Backed by our 2-year warranty, Winix will gladly fix or replace your unit if it should have a qualifying issue.
The Winix 5510 will tell you when it’s time to change the filter.
Easy and stress-free replacement that can be performed in no time.
*Tested to IEST-RP-CC0007 standard with an air flow rate of 1.5㎥/min
**The 8-hr TWA Ozone for this product is 0.22 ppbv when tested in a 30 m3 chamber. Refer to safety instructions in manual for information.
†AHAM Verifide® 4.8 Air Changes per hour are based on testing of Tobacco Smoke removal in rooms with 8 foot high ceilings. Air Quality improvements can vary based on many factors including the actual size, contents, type and level of pollutants present, and air flow profile of the room.
Winix
£209.99
£187.99
● In stock
Airthereal
£142.99
£112.99
● In stock