@StrawVagetarian @3M @JimRosenthal4 @CorsIAQ Larger filters are fine, but these 3m MERV 13 actually have quite low air resistance (due to many pleats i.e. high filtration medium surface area). Compare with a cheap MERV 8 filter (generic image picked from google images): https://t.co/V8kbfOaoZS
@Strawavagetarian@3M@JimRosenthal4@CorsIAQ较大的过滤器可以，但这些3M MERV 13实际上具有相当低的空气阻力（由于许多褶皱，即高过滤介质表面积）。与便宜的MERV 8过滤器（从谷歌图片中挑选的普通图片）相比：https://t.co/V8kbfOaoZS