You’re concerned about the indoor air quality in your house, and that’s a good place to start. IAQ in homes is often remarkably poor, four or five times worse than that outdoors. But if you have air filters to improve the air quality, why aren’t you noticing any positive results? If you’re still experiencing the same dusty air, the same number of allergens, the same coughing fits, etc., then something must be wrong—but what?
There are several possible answers to why you aren’t getting the results you want. We’ll look at the most common of them.
As we prepare our homes for winter, it’s important to assess our heating systems. The best way to do this is to schedule routine maintenance 
