| MERV | Minimum particle size | Typical controlled contaminant [1] | Typical application [1] |
|---|---|---|---|
| 1–4 | > 10.0 μm | Pollen, dust mites, cockroach debris, sanding dust, spray paint dust, textile fibers, carpet fibers | Residential window A-C units |
| 5–8[1] | 10.0–3.0 μm ("E3") | Mold spores, dust mite debris, cat and dog dander, hair spray, fabric protector, dusting aids, pudding mix | Better residential, general commercial, industrial workspaces |
| 9–12 | 3.0–1.0 μm ("E2") | Legionella, humidifier dust, lead dust, milled flour, auto emission particulates, nebulizer droplets | Superior residential, better commercial, hospital laboratories |
| 13–16 | 1.0–0.3 μm ("E1") | Bacteria, droplet nuclei (sneeze), cooking oil, most smoke and insecticide dust, most face powder, most paint pigments | Hospital and general surgery |
Reference (1):
Information taking from Enviroment Protection Agency of the USA:
The Residential Air Cleaners
Indoor Air Quality IAQ
Attached is the file:
Furnace Filters Merv 11 and 16
MERV Minimum Efficiency Reporting Value: MERV is the effectinveness of air filters.
The higher the rating the higher the filtration.
Calgary Home Comforts recommends to only USE manufacturer recommended filters.
Many filters in the marked are too restrictive causing premature failures of motors and heating components on your furnace, as well freeze up in your air conditioners
Benefits:
- Reduce air particles and dust