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The 3M 7100189216 is a Filtrete Ultimate Allergen Reduction air filter designed for residential HVAC systems. It attracts and captures microscopic airborne particles including bacteria, particles that carry viruses, and odor-causing contaminants. At 18 inches x 24 inches x 1 inch, this filter is sized for standard residential forced-air furnace and air handler return-air grilles. The Ultimate Allergen Reduction designation positions this filter above standard three-month 1-inch filter options in the Filtrete line. HVAC technicians and homeowners installing this filter should verify the rated dimensions match the equipment filter slot before installation.
This filter is rated for residential use only and is suited for single-family and multifamily dwelling HVAC systems using 1-inch standard filter slots in furnaces, air handlers, and fan coil units. It is designed to be installed in the return-air side of the system and provides filtration for conditioned living spaces where allergen and fine particle reduction is a priority. It is not rated for commercial or industrial air-handling applications.
Designed as an OEM-style drop-in replacement for standard 1-inch residential air filter slots in forced-air furnaces and air handlers accepting an 18 inches x 24 inches x 1 inch filter.
Installation is typically performed by an HVAC technician or a knowledgeable building occupant. Power down the furnace or air handler at the disconnect or thermostat before replacing the filter. Confirm airflow direction arrow on the filter frame aligns with the direction of airflow toward the blower before securing in the filter track. Do not operate the system with a missing or improperly seated filter.
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