STAR BRITE NosGUARD SG Auto Odor Eliminator - Do-It-Yourself ClO2 Odor Control System

We used several in a large space. Interestingly it eliminated the old cigarette smell, but didn't affect the other old -'odour' that lingered. Will try again. The air is much fresher now, but not sure how long it lasts. Still worth it.

Here is a short, punchy 5-star review for the product: ⭐⭐⭐⭐⭐ **Actually works! Completely cleared out every bad smell.** I used this in my car and it completely eliminated all the stubborn odors from food, smoking, and past spills. Instead of just masking the smells with a heavy perfume, it actually neutralized them and left the interior smelling fresh and clean again. Highly recommend if you need to deep clean your car's air, NOTE please spend your vehicle before entering this product has a very strong smell and could be uncomfortable for some

Great product, the smells in my car are gone and my son left some peaches and some food from Buc-ee’s under the passenger seat and after a couple of weeks the car smelled horrible (what can I say, got back from vacation and needed to rest). This product got rid of the smell overnight, granted the car smelled like a hospital for a couple of days, but that’s a sacrifice I’m willing to make.

The used truck I bought was extremely stinky with cigarette smoke. Used product overnight and it was like a new vehicle again. Can not detect a smell of smoke.

Followed directions and left it in the cab of a Toyota Tacoma overnight. Seemed to work well at first, but smoke smell has returned. Not sure if I’ll try again or just let time eradicate the smell.