Classic 400 Series Particle Filter

Compatible with: 403 • 405 • 450E • 402 • 410 • 455EB • 480i


Special Offer

Save 15% with a subscription


Add to cart options

Classic particle filter

HEPASilent™ technology

Uncompromised particle removal

Uncompromised particle removal, advanced HEPASilent™ technology removes 99.97% of airbourne particles like, PM 2.5, pollen, dust, pet dander and mold.

Particle filter

Captures 99.97%

Captures 99.97%, advanced HEPASilent™ technology rapidly removes 99.97% of airborne particles like, PM 2.5, pollen, dust, pet dander, and mold spores.

Filter structure

Traps particles for good

Traps particles for good, the gradient structure traps even the smallest particles and resists clogging to maintain maximum airflow.


100% recyclable

This filter is 100% recyclable, so the only thing you’re adding back into the environment is clean air.

Filter material

Naturally antibacterial

Naturally antibacterial, filter fibers prevent bacteria and mold growth, to ensure you'll never put bacteria and mold back into the air.

Filter life

Optimal performance

Optimal performance, Blueair recommends changing your filter about once every 6 months, when used 24 hours a day, to maintain optimum performance.

Manufacturer recommended

Genuine Blueair filters

Genuine Blueair filters, to maintain optimal performance, use only genuine Blueair replacement filters. Use of non-genuine filters will void warranty.

Product Specs
Filter Type
Gradient structured filter with thermally bonded fibers containing polypropylene and polyethylene free of chemicals and binders. Naturally anti-bacterial. Fiber shedding resistant.
Dimensions (H x W x D)
21 x 10 x 3.8 in (521 x 250 x 95 mm)
Number of filters
Filter frame material
Filter recycling
Recommended filter change
6 months (4,380 hours)

Related products & filters