Maybe this was designed for pilots it's so loud
If you can stand the sound of an airplane constantly flying over your home then you'll love this product. My princess puppy during her training days loved to tinkle in the hall. No matter what I did there was a remaining odor. This is the only thing that has completely gotten rid of the smell and not masked it. However the noise is atrocious. I'm researching other purifiers now because the noise is so loud you can't sleep with it on and it's recommend to leave running  24 hours for best results.
Rating: 2 stars