The QuFresh Air Scrubber HEPA Filter is the third & last filtration step for the QuFresh air scrubber， filtering particles down to 0.3 microns in size with 99.97% efficiency from your indoor space. This replacement filter is a perfect fit for QuFresh model AS1000WHT & has an H13 rating for capturing even the smallest common airborne pollutants. Installs easily into the air scrubber by simply opening the unit's latching front cover & removing the internal brackets with common household tools. To keep your air scrubber operating at peak performance， replace this filter when \"change HEPA filter\" indicator light on scrubber unit illuminates.

Dense， pleated fiberglass filter material with lightweight frame

Lightweight frame compatible with QuFresh AS1000WHT air scrubber for a true， secure fit

Replace by opening air scrubber's easy latch cover & removing internal brackets with household tools

H13. true HEPA captures particles down to 0.3 microns with 99.97% effectiveness

Replace when "change HEPA filter" indicator light on scrubber unit illuminates

Package includes 3 replacement filters