Review on 2021 Upgraded Trave-Size Personal Air Purifier Necklace by IGOKOTI - Efficient Pet Odor Removal for Outdoors by Tamara Sanders

I'm very glad I bought it, it's small but efficient. When I first turned it on, I could see the difference it made. I also did some experiments to see its effectiveness, first with smoke under a cup and it took over in seconds. Then, after realizing how long the battery lasted, I left it in the car overnight to see if it would help get rid of the damp smell from all that snow in my car. To my surprise, it made a difference and still had a few hours of battery life left.