It is for small areas
I gave this 4 out of 5 stars
This personal USB mini ozone air purifier is great for small areas. It would be great in the refrigerator, a closet or in the cupboard. It is a "mini" air purifier so it is for small spaces. It comes with a USB cord but a wall adapter is not included. It can use 4 AA batteries so it can be placed anywhere. The batteries are not included with the air purifier. There is a simple on and off button. I plugged it into my computer to first try it out. After it is turned on I smelled the air purifier and I could really smell the ozone. It reminded me of how the air sometimes smells after a thunderstorm. This is not a fan. It just emits the ozone which is said to make the air smell better. I keep an air purifier in my refrigerator and it helps with food smells. I received this item at a discounted rate to try in exchange for my honest and unbiased review.