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The 3M COMPANY 9801-2PK-HDW is a Micro Allergen Reduction Filter designed for residential forced-air HVAC systems. Sized at 16 inches x 25 inches x 1 inch, this filter is engineered to attract and capture microscopic allergens including dust, smoke, and smog particles, as well as larger allergens such as mold spores and pollen. It is sold as a 2-pack, making it practical for routine filter change schedules. Licensed HVAC technicians and knowledgeable homeowners alike install this filter as part of standard seasonal or scheduled maintenance on residential air handlers and furnaces.
This filter is rated for residential use only and fits standard 16 x 25 x 1 inch filter slots found in a wide range of residential forced-air furnaces, air handlers, and central HVAC systems. It is well-suited for environments where airborne allergen control is a priority, such as homes with pets, occupants with allergies, or properties in areas with elevated outdoor particulate levels including smog and high pollen counts. The 2-pack format supports back-to-back replacement cycles without requiring an additional order.
Designed as an OEM-style replacement for standard 16 x 25 x 1 inch residential furnace and air handler filter slots.
Installation is performed by a licensed HVAC technician or qualified homeowner. Always power down the HVAC system at the thermostat and disconnect power at the breaker before opening the filter access panel. Insert the filter with the airflow direction arrow on the frame pointing toward the blower or air handler. Follow the system manufacturer's recommended replacement interval and local indoor air quality guidelines.
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