Non-toxic. Wuxi Biotech Biotechnology Co., Ltd. was established on August 25, 2010. Its registered address is located at Huishan Avenue, Huishan Economic Development Zone, Wuxi. Its business scope includes licensed projects: third-class medical device operation; third-class medical device leasing, etc. The air in the company's dust-free workshop is all air that has been purified multiple times. The air is very clean, so it is non-toxic and very safe.