Go to www.DirtyFilters.com and see the videos of the "Brick Test" for filters. If your filter can fails the "Brick test" you should invest in Camfil/Farr filters."BUY FARR & BE SAFE"
Go to www.DirtyFilters.com and see the videos of the "Brick Test" for filters. If your filter can fails the "Brick test" you should invest in Camfil/Farr filters.