RADAR SENCE DEVICE: This particular UV lamp has a built-in safeguard.It can actually detect the presence of a person in the room, and will shut off in the event of this happening. Keeping everyone safe HIGH EFFICIENCY STERILIZATION: This UV disinfection lamp achieves 99.99% sterilization (kills 99.99% of germs) by targeting the DNA of microbes, damaging the DNA structure, and preventing their reproduction. It kills Candida albicans, Staphylococcus aureus and Escherichia coli, and works on any surface, and in air or water that is infected by these germs. This device provides sterilization and air purification for spaces under 430 square feet. UNIQUE DESIGN & SAFE USE - With intelligent radar sensors built-in, lamp will auto shut-off when sensing living beings.With 3 time modes -- 15/30/60 minutes, it can be easily controlled by remote or the switch button on the lamp.A 30-second delay allows you to leave the area being disinfected. Using a UVC germicidal light with a 360 degree beam angle, it completely removes odors and dust particles, effectively improving your living environment. IDEAL CHOICE WITH EXCELLENT SERVICE - With germicidal function, this UV-C light sanitizer is suitable for a variety of occasions and locations, and can be used at home, school, office, etc. WARNING - Ultraviolet radiation can cause skin and eye burns, please use carefully, according to directions, and heed all warnings.Avoid long-term direct exposure.The process requires people/animals and plants to wait outside during the UVC light cleaning process. After completion, allow at least 60 minutes before humans or animals enter the room.