With the continuous improvement of modern people's living standards, Chinese residents have attached increasing importance to oral health awareness. However, in recent years, electric toothbrushes have become a new generation of personal oral health care tools due to their advantages of convenient use, speed, comfort, and ultra-high cleaning ability, and have been highly favored by consumers. Waterproof of electric toothbrushes is also an indispensable part. Common electric toothbrushes have a 5-level waterproof rating, while high-quality ones can achieve a 7-level waterproof rating. If you come into contact with water during use, there is no need to worry about electric leakage. Normal flushing is not a problem.