Product review (5 stars): Wish I'd gotten these sooner!
This is a very simple review, because the product works great! The shame is that I never knew my Range Hood had these additional filters as part of their original equipment, because someone else just tossed out the old ones without replacing them. I'd always cursed my Range Hood's performance - or lack thereof. Now the thing finally works. These fit perfectly into the main filters and act as kind of a 2-stage filter system. BUY THEM - it's worth it!!!