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Photographs depicting different wearing methods, using a replaceable particulate respirator as an example.
R: Recommended: the respirator headband is placed on the area from the parietal region to the occipital region, with nothing between the facepiece cushion and face. K: Knit: a knit cover is placed between the facepiece cushion and face. T: Towel: a towel is placed between the facepiece cushion and face. H: Helmet: the headband is worn over a helmet.
