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从 00:22 开始Hand Sanitizer Requirements

How to properly use hand sanitizer

YouTubeUT Physicians

从 0:00 开始Introduction and Benefits

DIY Hand Sanitizer Gel | How to Make Hand Sanitizer at Home

YouTubeOur Oily House

从 00:09 开始Hand Rubbing Instructions

WHO: How to handrub? With alcohol-based formulation

YouTubeWorld Health Organization (WHO)

从 01:25 开始Applying Hand Sanitizer

How to Wash Hands, Apply Hand Sani…

YouTubeNewYork-Presbyterian Hospital

从 0:00 开始Introduction and Materials

[DIY] How to Make Your Own Hand Sanitizer | WHO Formulations

YouTubeSuardi Tan