Blueair 400 Series Replacement Filters (For Blueair 405, 480i, 403, 450E)

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Blueair 400 Series Particle and DualProtection Filters are designed for use with Blueair 400 series air purifiers, i.e., the current Blueair Classic 405 and older Blueair 403 model, as well as most discontinued/non-standard Blueair 400 series models (e.g., 402, 410, 450E, 455EB, 480i). It is critical to replace the filter in your Blueair 400 series unit every 6 months to maintain optimal cleaning power and preserve your manufacturer’s warranty.

Blueair 400 series filters

How to choose your Blueair 400 series replacement filter:

Blueair 400 Series Filter Specifications
How to Replace the Filter in Your Blueair 400 Series Air Purifier


Blueair 400 Series Replacement Filters

NOTE: Blueair 400 series replacement filters fit all Blueair 400 series air purifiers (i.e., Blueair 402, 403, 405, 410, 450E, 455EB and 480i).

SPECIAL OFFER - Purchase a Blueair 400 Series Filter Twin-Pack and SAVE, plus get FREE SHIPPING!

Twin-Pack (2) Blueair 400 Series Particle Filters - $149.99 CAD  ($74.99 ea)
Twin-Pack (2) Blueair 400 Series DualProtection Filters - $289.99 CAD  ($144.99 ea)

Select your twin-pack:


Also available as single filters:

Blueair 400 Series Particle Filter – $89.99 CAD
Blueair 400 Series DualProtection Filter – $194.99 CAD

Select your filter:


Blueair 400 Series Filter Specifications


Blueair 400 Series Particle Filter Blueair 400 Series DualProtection Filter
Suitable For Blueair 400 series filters fit all Blueair 400 series air purifiers (e.g, 402, 403, 405 410, 450E, 455EB and 480i).
Note that Blueair recommends the use of DualProtection filters for Classic 405s that are being used with an Aware Air Quality Monitor, as well as for E and i models.
Filter Dimensions 21 x 10 x 3.8 inches 21 x 10 x 3.8 inches
Filter Weight 1.9 lbs. 2.2 lbs.
Particle Filtration Certified efficiency of 99.97% for airborne particles down to 0.1 microns, including dust, pollen, pet dander, mold spores and bacteria
Filter Type Gradient structured filter with ultrasonically bonded polypropylene fibres free of chemicals and binders. Resistant to moisture and fibre shedding
No. of Pleats 92 92
Effective Filter Area 46 sq. ft. 46 sq. ft.
Filter Media Thickness 0.039 inches 0.039 inches
Filter Pleat Separators Non-hazardous, EVA based, VOC free, UV resistant Non-hazardous, EVA based, VOC free, UV resistant
Gas and Odor Filtration None Filters out gaseous and chemical pollutants such as tobacco, marijuana and wood smoke, carbon monoxide, ethylene oxide, ozone and volatile organic compounds (VOCs)
Type of Carbon n/a Pure activated coconut carbon with no chemical additives
Filter Life 6 months 6 months

How to Replace the Filter In Your Blueair 400 Series Air Purifier

Changing the filter in your Blueair 400 Series air purifier is very simple:
1. Unplug your Blueair unit and open the door on the front.
2. Pull the old Blueair filter out.
3. Vacuum the inside chamber using a soft brush attachment (if necessary).
4. Place the replacement filter in the air purifier in so that the words "this side must face front" are visible when inserted.
5. Shut the door of the Blueair unit.
6. Plug the air purifier back in and turn it on.
7. On the Blueair Classic 405, 450E and 455 EB models, reset the timer by pressing the filter/timer button on the air purifier. On the Blueair 403 and other units, hold down the reset button on the magnetic timer for 10 seconds.


Modern Alchemy Air Purifiers is 100% Canadian-owned, operating out of Ottawa, Canada. We proudly serve Vancouver, Calgary, Edmonton, Regina, Winnipeg, Toronto, Montreal, Halifax, St. John’s and all points in between.

If you have any questions about which Blueair replacement filter is required for your air purifier or are trying to locate a replacement filter for a Blueair model that is not listed, please contact us at:

Phone: 613-894-0331
Toll Free: 1-877-GO-7-PURE (1-877-467-7873)
Email: info@modernalchemyair.com

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