feature of product:
1. Both FDA and CE certificates are complete-available for inspection;
2. The product is formally packaged, 10 boxes, strictly in accordance with international standards;
3. Foreign guests docking government project orders. Guest testing is 100% qualified;
4. U.S. FDA certificate, qualification can be inquired, the United States is 100% approved.
It has the characteristics of high-efficiency filtration and low breathing resistance. The filtration efficiency is> 95%. It has good breathability, no fogging when wearing glasses, and a long service life. It can be sterilized by alcohol, water cooking, etc.