EAXGO 45i Replacement Filter Compatible with BreatheSmart 45i & Flex Air Purifier, 2 H13 True HEPA Filter with 4 Carbon Pre-Filters,Part #B4-Pure/FL40, 2 Pack

["Compatibility:Our EAXGO 45i Pure replacement filter is only compatible with A-len BreatheSmart 45i & Flex Air Purifier models, part # B4-Pure","H13 Grade True HEPA Filter:Our EAXGO 45i Pure replacement filter do the same job as the original Al-en BreatheSmart 45i & FLEX Pure filter.The H13 ture HEPA filter absorb up to 99.97% of particles as small as 0.3 microns,can efficiently absorb dust, pollen, pet dander,smoke","Carbon Prefilter: Carbon filter can effectively adsorb unwanted odors, cooking smells,pet odors and can absorb up large particles,such as hair, pet hair, dander, lint","Cost-effective:Our EAXGO 45i Pure replacement filter include 2 H13 Grade True HEPA Filter+ 4 Carbon Pre-Filters","Aftermarket Maintenance: Under normal use conditions, we recommend replacing the 45i Pure replacement filter replacement filter every 9-12 months and the Carbon Pre Filter every 3 months, if you encounter any problems, we are always willing to provide you with service"]