Definitely worth every penny!
I absolutely love this. My house used to have a pet odor to it, but within a day or two after this was plugged in it was gone. I had unplugged this to plug something into the outlet, and I forgot to plug the GermGuardian back in. When I came home from work, I noticed the smell was back. However after I plugged it back in, the odor was gone within an hour! It does have a low noise, but is not too noticeable. I got used to it quickly. The light on it is not too bright. I will be purchasing more for different rooms in my home.
Rating: 5 stars