Is UV Light harmful?

UV light can be harmful when someone is exposed for a long time. One should neither look at nor touch a UVC lamp while it is on for any length of time. When the UV air purifier is properly installed in your HVAC system by a professional contractor, there is no direct or harmful exposure of UV light to you or your family. Remember to power off your air purifier before replacing the lamps and do not look directly at a lamp that is powered on.