Last updated on May 29th, 2022
All Winix air purifiers use color codes to indicate air quality. These color codes are:
- Blue light. Means very good air quality. If your Winix PlasmaWave air purifier is set to auto mode it will run a low speed.
- Amber light. Means fair air quality.
- Red light. Means bad air quality as the sensor has detected many airborne pollutants in the air. The air purifier should run at a maximum speed in this case.
These color charts are the same for all Winix air purifiers including C535, 5300-2, 5500-2 and others.
P.S. If your Winix blinking red and the source of this is filter indicator, you should replace the air filter and reset the light.
My name is Alex Evans and I own this website. I have been in air purifier industry for several years now and nowadays I write about air purifiers, their features, benefits and downsides. Cheers!
Thank you for the explanation. I have had a couple of these air purifiers but must not have read their manual (not sure where I placed them). I am glad that Google pointed to your blog. I just switched the settings to auto and since the light shows orange it increased the fan by one step. Thank you again.
Thanks. I just got mine yesterday and the manual didn’t seem to say very much in regards to filter light meanings. I had my first night last night with filtered air in my bedroom. No sniffles, Headaches or sinus pain.
Glad it worked for you! 🙂
thanks for the information
What does the TINY red light signify(rectangular icon w arrows in/out)