Protect Your Healthy and Stuff The oven pro uses blue light, not heat, so it is safe for all objects. The tight-fitting polarized door means no exposure to people in the room from the lamp. The Cleaning Machine have a smart induction switch which can be automatically turned off the LED light when you open the door cover, it won't hurt your eyes and skin, The inside of the device uses light, not heat, its safe for all items. Eeffectively Work The manicure tool box with a wave~length of 253n m clean items from all corners without the burning smell, High quality stainless steel construction inside are durable. Stainless steel, and enhanced light reflection effectively accomplishes 360 cleaning of items. There are come with 2 pieces of removable tray,Slightly heavier tools are recommended to be stored in the center of the tray for added stability.