This is the Filti face mask material and is made up of a lightweight 3 layer material that has been tested to efficiently filtering out (up to 95%) of sub-micron particles including bacteria and viruses.
The filtration rating is REF. F7 >95% efficient at 0.3 micron at 5.33cm/sec face velocity. Tested using TSI 3160 test method. Made in the USA.
Fabric is 29 inches wide and sold in 1/4 yard increments. May not be consecutive cuts.
The filtration rating is REF. F7 >95% efficient at 0.3 micron at 5.33cm/sec face velocity. Tested using TSI 3160 test method. Made in the USA.
Fabric is 29 inches wide and sold in 1/4 yard increments. May not be consecutive cuts.