Review on Negative Purifier Generator Freshener Bathrooms by Tom Timmer

I don't think it's technically useful! I paid $10 for a blue LED. It was in my bathroom where there was no noticeable negative ion exposure. Generally, these things smell as soon as they work. A week later it went in the trash... I bought a separate device from another manufacturer, it doesn't look like it and just a little bigger, but it definitely works! You'll smell his work within seconds of turning it on.