Alcohol-free hand sanitizers are just as effective as alcohol-based ones at killing the SARS-CoV-2 virus. Researchers tested several common ingredients of alcohol-free sanitizers including benzalkonium chloride and found that they could wipe out at least 99.9 per cent of the virus within 15 seconds. Alcohol-free sanitizers have several advantages — benzalkonium chloride can be used in much lower concentrations and does not cause the common burning feeling of alcohol-based products, so it could be particularly useful for health-care workers and others who must sanitize frequently.
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