17x21x1 Exact MERV 13 AC Furnace Filters 6 Pack AC / Dehumidification / Humidification Minimum 3 applications at 5-7

Minimum 3 applications at 5-7 day intervals or shorter in severe infestations

supermarkets and consumers

Compatible with all major lamp brands

| Airflow: 402 CFM | Noise: 32 dBA | Bearings: Dual Ball

It has 3 speed settings with oscillation controls and adjustable tilt

17x21x1 Exact MERV 13 AC Furnace Filters 6 Pack AC / Dehumidification / Humidification Minimum 3 applications at 5-7Nordic Pure MERV 13 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200