Review on MOSO NATURAL: 200g Original Air Purifying Bag (4 Pack) for Cars, Closets, Bathrooms, Pet Areas - Unscented, Chemical-Free Charcoal Odor Eliminator by Sharese Mekang

I bought these to combat the smell of cigarette smoke in my Buick Enclave (to give you an idea of the cabin size) because I smoke, my partner smokes and some of ours friends do. If you're like us you smoke with the windows down and still try to blow it out the window but it still gets in. I have all four of these bags in the car: one on the passenger side, one on the second row on the driver's side. , two in the third row. And they seem to really limit the cigarette smell so far. When I get in the car after a few hours of waiting, I notice that the smell has greatly reduced, but not completely gone. I believe. I took off a star because while they seem to really help, all four are needed when each is designed for odor control in a space much larger than the internal cubic space in the enclave.