Warning: The before and after on my shop vac filter was shocking after just 2 months
I usually swap my shop vac filter every 6 months, no big deal. But I got a new fine ash vacuum attachment for chimney work, and I checked the filter after 2 months of using it on heavy soot jobs. The difference was insane, the dirty one was almost solid black and clogged, while a fresh one let the vac suck like new. Have any of you guys tried those HEPA filter upgrades for ash cleanup, or am I the only one who waited too long to check?