All the effectiveness without all the noise? When something sounds almost too good to be true you are likely to have questions. We hope to answer some of them here. If not, we'd love to help. Contact us ›
How do I change my 400 series filter?
To change the filter in your 400 series unit, open up the front door of the unit with the Blueair logo on it. You will find the filter placed sideways inside the unit. Slide out the old filter and replace it with the new one. The new filter should be facing you, so that you can read “This side must face front”. Make sure the door is securely closed, or else the unit will not start.
How close can I place my air purifier to the wall?
The back of the 400 series can be placed flush against the wall and a clearance of 4 inches or more in required on each of the gray sides of the unit.
Can I purchase a unit with wheels?
Yes. The 400 Series does not come with wheels, but a wheel chassis can be purchased. Please contact our customer service team at 1.888.BLUEAIR to order.
How do I reset the filter replacement indicator for my manual unit?
To reset the magnetic filter timer, press and hold the “RESET” button for 10 second. The filter change indicator light will turn off and the counter will begin its countdown to the next filter change(188 days). To temporarily stop the filter indicator light for five days, press the “SNOOZE” button.
How do I know when I need to change the filter in my manual unit?
Your magnetic filter timer will keep track of when your filter needs to be changed; its LED light will flash to notify you every six months or 188 days.