90 day filter, 23 times more effective than fiberglass filters. Filters airborne allergens including dust, dirt and pollen. Helps reduce dust and dirt buildup in furnace systems and air ducts. Cardboard frame material, made in the USA.
Captures household dust and other large airborne particles. Lasts up to 90 days/3 months.
The Filtrete dust reduction filter attracts and captures household dust and is ideal for high-velocity equipment. Performs better than ordinary fiberglass and washable 1" filters. For residential use only. MPR 300.