I purchased an original Peet 2 years ago. It's so quiet you don't think it's on. It's safe for all materials. It does a great job on elimating foot odor -
when you get home from work, the shoes go right on the dryer until the next day. It dries wet footware very well. I have now purchased the multi 4 shoe dryer. More feet, more Peets! Main reason for Peet purchase - MADE IN THE USA!