KF-AD mask is a mask exclusively for smear made in Korea. This is an out-of-medicine product approved by the Korean Food and Drug Administration to avoid the heat caused by masks in the hot summer. Currently, viral infections are spread to smear. The KF-AD mask, approved by the Ministry of Food and Drug Safety, uses a super-static filter that blocks more than 99% of BFE (bacterial filtration efficiency). The size is a large size recommended for adults. Bebemiso only sells certified genuine products of good quality.