That violet color is a HEPA (Filters are color coded.) and is an extreme filter and would get clogged up easily. Here is a trick I used to make my filters last longer, I would tape a piece of a porous paper towel to cover the opening. Saved clogging up my filters. I presume you made sure your mask will take other filters as well.
Last edited by jimmontg; 11-26-2016 at 09:31 AM.
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