The bristles are DuPont Staclean* | Soft and delicate bristles
4mm ultra-thin brush head | High-density bristles
The product has passed the FDA standard*
Disclaimer:
* Outer bristles diameter: 5mil (0.127 mm) with a tolerance of 0.03 mm; middle bristle diameter: 6mil (0.152mm) with a tolerance of 0.03 mm.
* The number of bristles are more than 2 times of those of Xiaomi Sonic Electric Toothbrush T500.
* Bass brushing method is a scientific method recommended by the American Dental Association.
* The bristle passed the test under the standards in accordance to the U.S. FDA (FDA 21 CFR 177.1020/FDA 21 CFR 177.1500/FDA 21 CFR 180.22 & FDA 21 CFR 180.32) standards. Test report No. EY201216042CC002; Test conducted by EMTEK Guangzhou Laboratory.
* The toothbrush head material passed the test under the standards in accordance to the U.S. FDA (FDA 21 CFR 180.32) standards. Test report No. (6621) 261-0972; Test conducted by Bureau Veritas Consumer Products Services Shanghai Co., Ltd.
* The data on this page is from the laboratory of Wuxi QingheXiaobei Technology Co., Ltd. unless otherwise specified.