Nordic Pure 18x24x4PM8C-1 Merv 8 Carbon Air Filter

Product Description

The NORDIC PURE 18x24x4PM8C-1 is a MERV 8 pleated plus carbon air filter designed for residential and light-commercial HVAC systems. It uses a dual-layer construction that fuses a MERV 8-rated filtration media with an activated carbon layer, delivering both particulate capture and odor reduction in a single filter. The actual dimensions are 17.5 inches by 23.375 inches by 3.625 inches, fitting nominal 18x24x4 filter slots. The carbon layer adsorbs odorous gases and volatile organic compounds (VOCs) while the pleated media captures airborne particulate matter down to 3.0 microns. The frame is a heavy-duty, moisture-resistant beverage board, and a metal mesh support grid is bonded to the pleats for structural integrity. Licensed HVAC technicians and knowledgeable homeowners typically handle installation.

This filter suits forced-air heating and cooling systems that use a 4-inch nominal filter rack or media cabinet. It is well-suited for households with pets, cooking odors, or allergy sensitivities, where both particulate and odor control are priorities. The electrostatic, antimicrobial, and hypoallergenic media supports cleaner indoor air quality without heavily restricting airflow. The dual-layer design provides 33 percent more surface area compared to standard single-layer pleated filters. Nordic Pure rates this filter equivalent to MPR 800 on the Microparticle Performance Rating scale. Manufacturers recommend replacing the filter every 3 to 6 months under normal operating conditions, though environments with heavy dust or pet dander may require more frequent changes.

Key Features

• MERV 8 rated media captures particles from 3.0 to 10.0 microns, including lint, dust, pollen, dust mites, mold spores, and pet dander
• Activated carbon layer adsorbs VOCs, cooking odors, and pet smells
• Dual-layer construction increases surface area by 33 percent for reduced flow restriction
• Hypoallergenic, antimicrobial, and electrostatic filter media inhibits bacteria and mold growth
• Heavy-duty moisture-resistant beverage board frame with metal mesh pleat support
• Made in the USA

Compatibility

Designed as an OEM-style replacement for residential and light-commercial forced-air HVAC systems using a nominal 18x24x4 inch filter slot or media cabinet. Actual size is 17.5 inches by 23.375 inches by 3.625 inches - measure the existing filter slot before ordering to confirm fit.

Installation Notes

Installation is performed by a licensed HVAC technician or a qualified homeowner comfortable with HVAC maintenance. Always shut down the furnace or air handler at the thermostat and the system disconnect before removing the old filter. Note the airflow direction arrow printed on the filter frame and orient the replacement filter to match. Dispose of the used filter in a sealed bag to avoid releasing captured particulate back into the environment.