Honeywell North Pre Filter Respiratory Replacement

North N-Series N95 Replacement Particulate Prefilters. 95% filter efficiency for non-oil based aerosol particulates. For use with North Brand respirators.|N95 pad filter|95% filter efficiency for non-oil based aerosol particulates|10 per pack|White in color|Slim profile|NIOSH approved|Only use for non oil based aerosol particulates|Only use in combination with North N series mask respirator