Question about 3M Filtrete Ultra Allergen Air Filter (Purple Series) 12x36x1 Filtrete Purple Air Purifier

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My filters turn black after about a week

My filtrete central air filters turn black after about a week

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I am also experiencing this problem, as well as 2 other people that I found on google, so I am inclined to think tha 3M has changed something in their manufacturing process, I think it very odd that this problem is manifesting itself at this time in different locations.
I have been using this product for sometime, and the problem of filters turning very dark did not exist when I started using this product

Posted on Feb 03, 2010

  • Fuedli Feb 05, 2011

    Always used these filters, but now they turn black in 2-3 days. No dirt or dust really shows, we do not smoke. The filter is just black, like it had a chemical reaction.

  • Owen Juhlke Jan 12, 2016

    I have experienced the same issue with filtrete filters as well. No issue with others. Must be a manufacture issue.

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You definitely need to clean your air handler and your outdoor unit as well. If you are not sure on how to proceed, call in a pro. they always have special deals this time of year.

Posted on Jul 02, 2009

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