Blue Pure 121 Particle Filter

Compatible with: Blue Pure 121

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Blue filter


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.


100% recyclable

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

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 structure

Traps particles for good

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

Product Specs
Filter Type
Polypropylene fibers free of chemicals and binders. Fiber shedding resistant.
Dimensions (H x W x D)
19.5 x 12 x 12 in (495 x 295 x 295 mm)
Number of filters
Filter frame material
Filter recycling
Recommended filter change
6 months (4,380 hours)

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