12 Filters - for fabric face masks w/filter pocket

12 Filters - for fabric face masks w/filter pocket Each filter is made of 2 pieces of H100 Sterilization Wrap folded in half (so 4 layers) to be a 4 x 6 in filter. Can be inserted into filter pocket. The filter can be decontaminated by putting it in the oven for 5 min at 165degrees. Throw out filter when material starts to break down and insert new one. *this is not a medical grade mask and I am not a doctor or represent any doctors.