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Blue Pure 311 Auto Series Allergenblock Filter

Filter: AllergenBlock

$59.99

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$51.00
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Blue Pure 511i Max Fabric Pre-Filter

$8.99

Compatible with Blue Pure 511i Max

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Sand

  • Free & fast shipping
  • 30 day home trial
  • Free extended warranty

Smart Filtration, you can trust

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