We bought and used this filter on our wet-dry vac for cleaning up our house. We're in the middle of some serious rehab, restoring our 1904 house to its original charm, grace and majestic beauty. (estimated completion date is 2097) In the meantime, this filter does a good job of cleaning up the big ugly messes.
Before, when using our wet-dry vac without this filter (we used the traditional filters and even a paper filter) a cloud of dust would rise up out of the vacuum when you started it up.
With this filter in place, there are no large gray clouds looming on the horizon upon start up.
It says it filters down to 1 micron. The eye of an average sewing needle is 750 microns across and the period in written text at 10 font is about 400 microns. 1 micron is pretty tiny.
But as I understand, installing this filter on a wet-dry vac doesn't make it a HEPA vacuum, simply because there are other places on the vacuum for air leaks to occur.
However, as a rehabber, it is a TREMENDOUS help to add this filter onto your wet-dry vac. The filter we purchased is not suitable for wet applications.
