2014 High Efficiency teeth bleaching machine

2014 High Efficiency teeth bleaching machine Product Description Safety Prior to installation and start-up of the unit ,carefully read the instructions provided herein .As with all technical devices ,the proper function and safe operation of this unit depend on the users compliance with the safety recommendations presented in these operating instructions. CAUTION: 1. It is important to observe the following precautions and procedures ;Do not shine the light directly onto or