Blue Pure 311i Max Replacement Filter— H11 High Efficiency

This H11 filter is built to fit one purifier: the Blueair Blue Pure 311i Max. It is not compatible with the 311i+ Max or the 311 Auto — those two models use different cartridges (F3MAXPLUS and a separate 311 Auto filter), so check your unit’s model number before ordering.

The filter combines a particle layer and an activated carbon layer in a single cartridge, made from H11-grade filter paper. It’s built to catch dust, pet dander, mold spores, and pollen, and the carbon layer handles everyday odors from cooking and pets. Under regular use, plan on replacing it every 6 to 9 months, the same interval as the original Blueair F3MAX.

Available in white and black. OEM customization is available for private-label and bulk orders — colors, packaging, and branding can be adjusted to match your storefront. Manufactured in an ISO9001-certified facility, with a 1-year warranty and return/replacement support.

Further reading: Blue Pure 311i Max Filter: How to Order the Right Replacement

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