2 Pack F100 3-in-1 H13 True HEPA Replacement Filters Compatible with Instant AP100, Pre-Filter & H13 Grade True HEPA Filter & High Efficiency Activated Carbon Filter, Part# F100

COMPATIBLE MODEL: 3-in-1 H13 True Replacement Filter compatible with Instant AP100 Small Machine, Part # F100 PACKAGE INCLUDED: 2 pack 3-in-1 Premium H13 True Replacement Filter, including Fine Pre-Filter, H13 Grade True Filter and High Efficiency Activated Carbon Filter TRUE REPLACEMENT FILTER: H13 grade True filter helps to remove up to 99.97% of particles as small as 0.3 microns , protect you against sore throat EASY NO-TOOL REPLACEMENT: Replacing the filter is very simple and does not require any tools We recommend replacing the filter for at least 6-8 months or depending on usage and environment