Review on 🌬️ Premium ABS Vent Stack Filter - Black | Improve your Indoor Air Quality! by Jeremy May

There was a smell of sewage in front of the house. Concerned that I would have to do VERY EXPENSIVE plumbing repairs. After speaking to a few plumbers to get an honest opinion, I realized it was probably a draft from the roof vent. The SWEET AIR ventilation tube filter was the perfect solution. ** I used tape to attach the filter to the vent pipe. This keeps the filter in place in windy or rainy weather. No more sewage smell. THANK GOD. You must add pieces of charcoal to the filter before use. There's no real guide on how to do this, but it's not hard at all. Be sure to measure the inside diameter of the breather tube to determine the correct size.