Evaporative replacement filter absorbs hard water minerals and reduces scale build-up inside the water tank. increases airflow along the filter to increase humidity output
Honeycomb construction increases airflow along the filter in order to increase humidity output
Replacement filter for GermGuardian Air Purifier Model APH406W
Only one single combination filter needs to be replaced every 6-8 months depending on the use of the product; IMPORTANT: Use genuine Guardian Technologies replacement parts to maintain product performance.