【Compatible With】: Our 511 replacement filters set is compatible with Blueair
Blue Pure 511 Air Purifier. NOTE: FIT FOR BLUE PURE 511 ONLY, PLEASE MAKE SURE
YOUR AIR PURIFIER MODEL!!!
True H13 Hepa Filter】：Our 511 replacement filter feature true H13 HEPA
material that meets the high-efficiency particulate air (HEPA) standard. It can
efficiently absorb 99.97% of particles as small as 0.3 microns from indoor air,
including lint, hair, pet dander, etc.
Easy To Install】:Our 511 filter installation is very simple, just take out
the old filter and replace it with the new one.It is recommended to replace the
pre-filter every 3 months and 2-in-1 HEPA filter every 6-12 months depending on
using environment
No Risk Guarantee】:We attach great importance to customers' shopping
experience.If you have any problems during using,please contact with us any
time,we will solve the problems asap.