https://www.progearhealth.com/
https://bluemed.ca/
https://www.primed.ca/
https://www.defend.com/
https://www.tians.com/
https://www.dolphinproducts.com/
https://www.conney.com/product/3m-1820-fluid-resistant-surgical-masks-pleated-with-earloop-strap-50-box
https://products.halyardhealth.com/infection-prevention/facial-respiratory-protection/masks-respirators/halyard-aqua-level-3-anti-fog-procedure-mask-with-earloops.html
https://preceptmed.com/
https://www.medline.eu/uk/type-ii-procedural-facemask
N95
https://www.safetycompany.com/
Others
https://www.safetytoday.com/advancedwebpage.aspx?p=
細菌過濾率 BFE
微粒子過濾率 PFE
病毒過濾率 VFE
Amazon 出售的口罩,則多以美國材料和試驗協會 ASTM F2100-11 認證標示。當中需進行細菌過濾率 BFE、微粒子過濾率 PFE、液體阻擋能力 Fluid Resistance 等方面的測試,並分為 Level 1、Level 2 及 Level 3 3 個級別。如達 ASTM F2100-11 Level 1 標準的話,那麼以上項目數據都會超過 95% 方為合格,而達 ASTM F2100-11 Level 2 及 ASTM F2100-11 Level 3 的話,以上項目數據則必超過 98%。基本上一般用家選購使用的話,達到 ASTM F2100-11 Level 1 標準的口罩都已足夠,但如想有更高防護性,也可購買 ASTM F2100-11 Level 2 或 ASTM F2100-11 Level 3 的產品。
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