How much does clean air cost?
It’s important to note that if you’re not changing your filters after at most 3 months of use then getting a filter that is restrictive (more on that later) you may cause premature failure of heating or cooling components.
- Choose a properly sized filter. Next time you remove the old filter check and make sure it fits tightly in the filter opening. If the filter is smaller than the return opening or filter slot a majority of the air will flow around the filter instead of through the filter.
- Once you’ve identified the correct length and width of the filter the next thing you need to know is depth. Not all filters are 1 inch deep, you have the option of a 2 inch or 4 inch filter if your return opening or filter slot is large enough. The advantage of a deeper filter is that there is more filter material to remove particulates.
One example is a filter rating of a MERV 6 will remove mold, spores, dust mite debris, cat and dog dander and more.
There is another rating system called FPR (Filter Performance Rating) that is similar to MERV and is primarily used by Home Depot to rate filters.
So how much does clean air cost? Per year $90 – $120 depending on the size and MERV rating of the filter. But if it was only that easy, because of duct leakage and building leakage you go install the highest rated filter available and still be pulling in pollutants from leaky ducts or your attic and crawlspaces. Which is why it’s important to have a whole house assessment performed on your home.