Why Regular Deep Cleaning Improves Air Quality and Health The level of indoor air pollution within the commercial building in Canada tends to be 2 to 5 times greater than the one outdoors. You inhale dust, pollen, mold spores and bacteria which accumulate in carpets, vents, upholstery and floors. Regular cleaning eliminates the material on the surface, yet the more profound pollutants remain immobile. Read more: https://sharing.clickup.com/90....17539211/t/h/86dypph