2 Pack 311i+ Max/311i plus max Filter Replacement Compatible with Blue Pure 311i Max Air Purifier, F3MAX Purifier Parts, 2 in 1 H13 Ture HEPA and Activated Carbon Filter (Not 311i Max)

【FULLY COMPATIBLE】Blue Pure 311i plus Max Air Purifier replacement filter(Not Applicable 311i+ Max & 311 Auto),Each batch of filters undergoes sampling to complete rigorous factory testing to ensure that their air purification effect is the same as that of the original parts,with BLUEAIR Blue Pure 311i+ Max Air Purifier(NOT OEM PART)
【H13 GRADE HIGH EFFICIENCY FLITRATION】Made from H13 grade filter paper, the Ture HEPA is more than 99.95% efficient in filtering 0.3 micron particles, including household dust, pet dander, mould spores and plant pollen, at a wind speed of 5.33cm per second
【ACTIVATED CARBON ADSORPTION LAYER】Physically adsorbing pet and household odours from the air, so that you can always breathe fresh and clean air
【SIMPLE AND DURABL】Easily install our filters without the use of any tools. Simply remove the original pre-filter and install the activated carbon layer towards the inside of the machine. Depending on the indoor air environment, it is recommended to remove the filter cartridge for a simple cleaning every 3 months and replace it every 9-12 months for optimal air purification of the Blue Pure 311i Max
【QUALITY SERVICE】Bluearks is responsible for the product, no matter you have any questions or dissatisfaction, please feel free to contact us, we are committed to reply within 12 hours and solve the problems you encountered, to ensure that the customer experience is our top priority