Replacement prefilter Arctic Trail for Blue Pure 311 Auto
Blue Pure 311 Auto Pre-filter
Compatible with Blue Pure 311 Auto
$4.40 USD$10.99 USD
Smart Filtration, you can trust
-
Where form meets function
Our fabric pre-filters extend the life of primary filters, catching large airborne particles such as dust, lint, pollen, and pet hair.
A hidden compartment in the fabric keeps the power cord hidden out of sight, and they're colorful — with different options to complement your space.
Proud to be a Certified B Corp
As a B Corp, we’re part of a global community of businesses that meet high standards of social and environmental impact.
Meet our filters
-
Particle & Carbon
Our original filter. Removes allergens and traps light household odors from pets, cooking and smoke
-
SmokeBlock
2x more activated carbon than our original filter. Removes up to 99.99%³ of wildfire smoke
-
AllergenBlock⁵
Extra protection against allergens. Traps and neutralizes dust, pollen and pet dander
Blue Pure 311 Auto Pre-filter$4.40 USD