I like that this light technique is used at hospitals. This light is very easy to use, perhaps the easiest way to sanitize a room. After the sanitizing cycle is complete it has a smell that to me smells like a sterile, sanitized environment, but my husband says it smells a little like burnt electrical. This in no way stopped us from using this in every room of our house, including the kids rooms. I will continue to use to help my allergies