It’s about the fit and filtration

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PETALING JAYA: While layering a fabric mask on top of a medical mask will improve protection against the coronavirus, Malaysian experts say it is more important to have a mask that fits snugly on the face.Single masks – whether medical or fabric – are good enough for most situations as long as they are fitted well to the face. “An improper fit of a face mask can result in a significant decrease in the filtration efficiency.“This applies to both medical/surgical masks and cloth masks, ” said Malaysian Health Coalition member Datuk Dr Amar Singh. He cited the example of how surgical masks that have to be tied into place, thus offering a better fit, are almost twice as effective as those with elastic ear loops.Having said that, pairing a medical and fabric mask together can offer better protection precisely because it improves the fit of the mask as well as filtration efficiency, s…