There is no set length of time for filters. It depends on the rate of exposure. As a rule, replace your filters when you are no longer able to breathe comfortably. Here is a blog post that should help if you'd like more information.
Stephanie Sousa |
There is no set length of time for filters. It depends on the rate of exposure. As a rule, replace your filters when you are no longer able to breathe comfortably. Here is a blog post that should help if you'd like more information.