ShopKF94 MB(Melt Blown) Filters

It is recommended that you change the filter at least twice a week as general public usage, more often if you are close to an infected or vulnerable person. The filter is not washable.

This KF94 filter has a 94% dust capture efficiency.

PLEASE think carefully about whether you NEED a filter, they are in short supply or will be in various parts of the country.