Review on 🎋 Bamboo Charcoal Air Purifying Bag 12 Pack - Odor Absorber, Moisture Absorber, Natural Air Freshener, Shoe Deodorizer, Pet Odor Eliminator - Home, Closet, Car - 6x50g, 6x150g by Erin Buck

I got them to install air vents in my apartment to try to prevent cigarette/weed smoke from getting in, although more Activated carbon vents are used filters. It takes about three days after charging in the sun on both sides for more than 3 hours on each side to start working. They will not eliminate ACTIVE WEED odor or ACTIVE CIGARETTE smoke, but they will work in still air or small enclosed spaces. I have one in my closet after noticing my clothes smell like trapped air. In this way (without air movement) he removed residual odors.