It is based on Venturis principle. The oxygen flows through the mask at high velocity creating a negative pressure around it.
It is based on Venturis principle. The oxygen flows through the mask at high velocity creating a negative pressure around it. |
Air Pollution Pm2.5 N95 mask Kn95 Mask ffp2 with Non-woven Fabric Novel Coronavirus Precaution Disposable Contact:Hidy Yu Phone and whatsapp& wechat:+86 13646690682 & Efficient Filtration KN95 Safety Face Mask: can protect you from dust, car exhaust, pollen, haze, droplets, ...
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Quick Details Properties: Medical Polymer Materials & Products Place of Origin: Zhejiang, China Brand Name: GUARDI Model Number: KN95-FM01 Instrument classification: Class I Product name: Disposable medical Face Mask Type: General Medical Supplies Color: White Certificate: CE ...
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Standard: GB 2626-2019 Respiratory protection Self-priming filter anti-particulate respirator 6.7 Exhaust valve air tightness GB 2626-2019 Respiratory protection Self-priming filter anti-particulate respirator 6.14 Air tightness Application: used to test the air tightness ...
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