kn95 face mask filter mask 5-layer non-woven protects breathing safely and effectively face masks independent packagin DHL free shipping
Description
Basic Information: Name: Mask Color: White Note: 1.It is recommended to sterilize every 4 hours and then reuse. 2.Do not use this product when the environmental pollution is seriously harmful to health or the oxygen concentration is less than 18% . 3.When the product is damaged or breathing resistance increases, please replace it in time. 4.If you feel discomfort such as breathing, dizziness, nausea, etc., you should immediately go to a safe place for inspection and rest.
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