The following documents and table are also a guide to regulatory standards across international products. Due to the extreme shortage of PPE the following documents will best advise you how to choose an equivalent product which is in stock.
1) 3M Technical Bulletin re Comparison of FFP2, KN95 and N95 Filtering Facepiece Respirator Classes (issued by 3M technical division)
2) AS 4381:2015 Understanding the New Australian Mask Standards
Adult PM 2.5 Disposable Protective Mask Filters
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