For your Home Comfort and Peace of Mind

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:

Residential air cleaners.pdf

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



  1. Reduce air particles and dust
This site has been visited