It works
I bought three units recently. When the unit was first plugged in the electrical outlet, the blue light turned on. Then it turned off itself. According to the description, the unit starts to operate. My wife baked salmon in our toaster oven tonight. The fish smell was permeated throughout the house, up and downstairs. After about half an hour, the house smell was gone. It proves the unit is doing what it suppose to do, clean the air. I am not sure how to use it as a night light. But who care.
Rating: 5 stars