Blueair Air Purifier Red, Orange or Yellow Light Meaning & How To Reset It

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What Does Blueair Air Purifier Red, Orange or Yellow Light Mean?

The air filter is an important part inside your Blueair air purifier. In order for the machine to work at its best, it is important that you regularly change the filter. This can be easy to forget. Fortunately, Blueair air purifier models come with a built in red, orange or yellow light alert that will remind you. Keep reading to learn more about what a Blueair red, orange or yellow filter light can mean and how to reset them.

What Colors Are The Alert Light On Your Blueair Purifier Model?

Blueair Light ColorsBlueair Purifier Model
Red Light OnlyPure 211
Pure 311
Pure 411
Pure Fan Auto
DustMagnet
Sense+
Pro M / L / XL
Protect (red light can be static or blinking)
Orange Light OnlyClassic 200
Classic 400
Classic 500
Classic 600
Yellow & Red LightPure Fan
Pure 121
Pure 211+

What Does A Blueair Air Purifier Red, Orange or Yellow Light Mean?

If your Blueair model only has a red or orange alert light, then when this light turns on it means it is time to replace your air filter. This will usually happen after about six months of use. It is a bit more nuanced if you happen to have the Blueair Protect model. In that case, the red light can either be static or blinking. If it is static, it means a filter change is due. If it is blinking, it means the unit cannot detect the filter you installed and you should try to re-install it.

A few Blueair models have both a yellow and a red light alert which has to do with the age of the filter. On these models, the light will appear yellow after five months of using the filter. This yellow light alert is meant to serve as a reminder that you should order a replacement filter if you don’t have one on hand. The Blueair purifier light will turn from yellow to red on these models about a month later (so at the six month of use mark).

Why Is It Important To Change The Blueair Purifier Filter?

Air purifiers like those made by Blueair help remove contaminants from the air like allergens and indoor toxins. They do this by using one or more filters to help remove these particles from the air. Overtime, these filters will become clogged with dust and debris. When that happens, your air purifier won’t work as well. If you start to notice that the air feels stuffier or that your machine seems to have an odor or needs to work harder than normal, it is likely that you need to replace the filter in your Blueair purifier.

How To Reset Blueair Filter Red, Orange or Yellow Light

Once you’ve installed your replacement Blueair filter you will need to manually clear the red or orange light. Follow the steps to reset the light on your specific Blueair purifier model.

ModelHow To Reset Blueair Filter Light
Pure 121Press the button for 3 seconds
Pure 211+Press the button for 3 seconds
Pure 211+ AutoPress and hold the button for 7 seconds
Pure 311 AutoPress and hold the button for 7 seconds
Pure 411Press and hold the button for 5 seconds
Pure 411+Press the touch button for 5 seconds. It will flash three times and then turn white.
Pure 411 AutoPress and hold the button for 7 seconds
Pure FanPress the button for 3 seconds
Pure Fan AutoPress the airflow speed button for 7 seconds
Classic 200Press the button for 5 seconds
Classic 400Press the button for 5 seconds
Classic 500Press the button for 5 seconds
Classic 600Press the button for 5 seconds
DustMagnetPress the airflow speed button for 15 seconds
ProHold the red filter replacement light for 3 seconds
Sense+Press the red filter replacement indicator for 30 seconds
ProtectN/A
How To Reset Blueair Filter Light

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