The cost fresh air should be this expensive.
Not sure if units are actually working at killing germs.Have 3 diffrent units diffrent moldes & style by the same company.  All are located through out the house. Does a great job clearing kitchen odors that come from cooking with herbs. Keep small rooms/office space smelling fresh. Product been in use for 3 months 24/7. Not sure bulb life. Humming sound not a bother to me. Wish I had purchase more b4 COVID-19. Supply & demand is outrageous now. For me using the top outlet to hold the device worked better for me.
Rating: 5 stars