To ensure effectiveness, it’s important to buy authentic N95 and KN95 masks. Buy directly from the manufacturer’s website or a reputable site. Markings are printed on respirators to show that they are genuine. N95, N99, N100, P95, P100 masks are the only types that have National Institute for Occupational Safety and Health (NIOSH) approvalTrusted Source. They will have a certification mark and the term “NIOSH-approved”. Make sure the masks are of high quality. Look out for loose straps or misalignment in terms of fit. Masks should not have decorative add-ons, such as sequins or tassels
