Filtration

When treated with ProShield® or BioShield®75, filter surfaces are significantly less susceptible to the growth of molds, mildew, fungi, and odor-causing bacteria.

…….When treated with BioShield®75, filter surfaces are significantly
less susceptible to the growth of molds, mildew, fungi, and odor-causing
bacteria. BioShield®75 bonds to the filter and is not released into the air,
making it extremely safe……

– Napa Filters