What is a MERV 12 rating?
The MERV value (Minimum Efficiency Rating Value) is based on independent tests developed by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). The MERV value is a universal scale allowing the consumer to compare filter efficiency. The MERV value is based on the efficiency of a filter to capture a range of particles which cause indoor air quality and allergy problems. The higher the MERV value is, the more efficient the filter is. Residential air filter ratings range from MERV 1 to MERV 12. MERV ratings above 12 currently are available only to special industrial, healthcare, or scientific applications. The AllergyZone Furnace Filter has earned a MERV 12 rating, providing the best solution for the home environment. The AllergyZone Furnace Filter provides the optimal balance of efficiency to remove particles, low resistance to airflow, and high dust holding capacity – the OPTIMAL FILTER QUALITY TRIANGLE™.
