Charcoal Filters for use in cloth masks. These filters measure 3.5 x 2.25 inches and consist of five layers. Our charcoal filters have been labortory tested for Bacterial Filtration Efficiency and our flters have acheived a ratiing of over 98% efficient.
These filters may be used for up to 8 hours before disposal.
We offer two packs to choose from:
White Filters in a 10 Pack
Seven Colors in a 7 Pack (one for each day of the week)