2 Value Packs HE402 Replacement Air Filter for Shark HE400 HE401 HE402 HE405 4 Fans Purifier, 3 Stages Filtration with H13 True HEPA, Activated Carbon Filters And Fine Pre-fillter, Part # HE4FKPET

【Compatibility】Perfectly compatible with Shark HE400 HE401 HE402 HE405 air purifier

【3 Stages Filtration】3-in-1 filter of H13 true HEPA filter,activated carbon filter and fine pre-filter

【High Efficiency】Efficiently remove 99.97% of airborne particles down to 0.3 microns in size

【Value Pack】Includes 2 packs filters in the package at half the price of OEM

【Frequency】It is recommended to replace the filter every 6-12 months depending on using environment