• Minimum Efficiency Reported Value

No, it is critical that a filter is selected that has the correct MERV rating and air flow specifications. However, a trained air filter specialist can recommend alternative options that could improve filtration quality or save money.

Higher pressure drop means more resistance to airflow. Pressure drop increases throughout the life of a filter. Choose filters that balance efficiency (MERV rating) and airflow.

Filters with MERV-13 or higher ratings can trap smaller particles, including viruses. Many HVAC systems will have a MERV-8 filter installed as the default.

Yes, but consider system compatibility. High MERV rating filters may restrict airflow, affecting HVAC performance.

The sq. ft. of media and design of the filter can drastically improve the airflow of a filter. Generally, the more sq. ft. of media, the better the airflow will be. This is why some higher MERV rating filters still have great airflow.

A carbon filter will effectively remove odors and VOC’s from the air.

ACH (Air Changes per Hour) calculates the number of times that air is cycled or replaced. This tells you how often is air moving through an HVAC system (through air exchanges), so that you can understand how often clean air is being introduced into a space.

A HEPA filter must go through extensive testing and must be able to trap 99.97% or greater of particles that are .3 microns in diameter. All HEPA filters are individually tested and must come with a test report.

Washable filters are most commonly used on air intake of RTU’s (Roof Top Units) as a first line of defense, often followed by another bank of pre filters downstream.