General Aire MAC 1400 Air Cleaner

Breathe cleaner, healthier air with the General Aire MAC 1400 Air Cleaner, a high-capacity filtration system designed to treat every cubic foot of air that passes through your HVAC system.

Ideal for homeowners who need a quiet, low-maintenance way to reduce allergens and protect their heating and cooling equipment, this whole-house air purifier delivers reliable MERV-11 performance without restricting airflow.

Installed in the HVAC system’s return air duct, the MAC 1400 continuously captures dust, pollen, pet dander, and even virus-sized particles, helping allergy and asthma sufferers breathe easier year-round. The Opti-Fiber media filter and low pressure drop mean your furnace or air handler works efficiently while the air in your living spaces stays fresh and clean.

Key Features and Benefits of the MAC 1400 Whole-House Air Cleaner

• Opti-Fiber Media: The MERV-11 filter removes 65 percent of particles as small as 1 micron in size, targeting common allergy triggers like dust, mold spores, and pollen for noticeably cleaner indoor air.
• High Airflow Capacity: Designed to provide 1,400 CFM airflow to keep up with medium to large HVAC systems without straining your blower or reducing comfort levels in the home.
• Low Pressure Drop: Maintains system efficiency and helps control energy costs, limiting its maximum static pressure of 0.28-inches WC so your equipment doesn’t have to work harder.
• Tool-Free Maintenance: The “Snap Action” door lets you replace the disposable MERV-11 filter in seconds, no screws, clips, or mess. Simply change the cartridge every 4 to 6 months.
• Durable Painted Cabinet: The powder-coated steel housing with a premium door resists rust and blends neatly with existing ductwork for a professional-grade finish.
• HVAC System Longevity: By trapping airborne debris before it reaches coils and blowers, the MAC 1,400 helps keep equipment clean, reducing wear and supporting efficient operation.
• Passive Operation: Get continuous filtration driven by your furnace or air handler’s natural airflow without fans, motors, or added noise.

Whole-House Filtration Made Simple

The MAC 1400 is engineered for straightforward installation and hassle-free upkeep. With a slim 7-inch cabinet depth, it fits snugly into most return ducts, and its 26-inch clearance requirement ensures the filter slides out smoothly during replacements. 

Because the media lasts up to six months, you’ll spend less time on maintenance and more time enjoying cleaner, fresher indoor air. Plus, the downstream wire mesh stabilizes the filter pack, preventing media sagging and preserving peak performance from the first day of use to the last.