Electronic Air Cleaner Prefilters

ECOairflow's M-Series hybrid pad is engineered as a single-unit replacement filter rather than a washable prefilter. Because it combines both the prefilter and final filter stages into one pad, maintenance is simplified — when the filter reaches end-of-life, the entire pad is replaced. Contact ECOairflow's technical team for specific replacement interval guidance based on your facility's application and air quality conditions.

Yes — electronic air cleaners like ECOairflow's M-Series deliver measurably superior filtration compared to passive filters at a significantly lower pressure drop. Independent testing shows 74.73% capture of PM0.1 ultrafine particles, 54% fan energy savings over 12 weeks, and compliance with ASHRAE 170 hospital standards. The reduced energy and maintenance costs provide a compelling return on investment.

The M-Series 2" Hybrid EAC is available in MERV 13, 14, 15, and 16 configurations. The MERV 14A variant is approved for hospital emergency rooms and treatment areas under ASHRAE 170, while the MERV 16A variant is approved for operating rooms and high-acuity procedural spaces. All ratings are maintained whether the unit is powered or unpowered.

Yes — the M-Series is unique in the electronic air cleaner category because it maintains its full rated MERV 13, 14, 15, or 16 performance whether powered, unpowered, or under ASHRAE Appendix J conditioning. This is critical for medical treatment rooms where filtration performance must be guaranteed even during a power interruption.

ECOairflow's M-Series hybrid electronic air cleaner prefilters use patented Electronic Polarization Technology to capture ultrafine particles down to 0.001 microns. Independent testing confirms 74.73% capture of PM0.1 ultrafine particles, providing a level of filtration that far exceeds what passive mechanical filters of comparable pressure drop can achieve.

ECOairflow's Electronic Air Cleaner Prefilters are engineered for a broad range of applications including healthcare facilities and hospitals (ORs, ICUs, ERs, and high-acuity procedural rooms), commercial office buildings, schools and universities, and pharmaceutical and life sciences environments such as cleanrooms and laboratories. They are also suitable for LEED-certified and other green building projects.

No — the M-Series holds UL 2998 Zero Ozone Verification, confirming that ozone emissions are below 0.0005 ppm, which is effectively zero. It also exceeds ASHRAE 170 emission standards for both ozone and formaldehyde, making it safe for use in sensitive environments such as operating rooms, ICUs, and occupied commercial spaces.