@dedrie77 @Kenneth33071904 @AnnieOddly @carolbinks @DrAimeeGrant CR is not technically a HEPA filter. It uses MERV 13 filters which only filter 60% of the most unfilterable particles. It makes up for it by high airflow (much higher than typical HEPA filter boxes) and multiple passes (60% twice is 91%, and so on).
@dedrie77@Kenneth33071904@Annieodly@carolbinks@DraimeGrant CR严格来说不是高效空气过滤器。它使用MERV 13过滤器，只过滤60%最不可过滤的颗粒。它通过高气流（远高于典型的HEPA过滤箱）和多通道（60%两次为91%等）来弥补。