There are few things in the world we take for granted more than fresh, contaminant-free air. When you have it, you don’t have to think about it. When you don’t have it, however, it becomes a big problem. What’s more, many of the causes of bad air quality, such as clogged filters or fungus growing in a duct can take a while to develop. As your indoor air quality gets slowly worse, your nose and other senses slowly get used to its effects. You may not even notice anything is wrong until things have gotten pretty bad. Professional indoor air quality testing in Edmonton is, of course, the only way to be absolutely sure of the quality of your air.