Disposable sterilized medical masks

The product consists of mask format, filter membrane, mask belt and nose clip. The mask format is made of polypropylene non-woven fabric, the filter film is made of polypropylene melt-blown non-woven fabric, the mask belt is made of spandex filament, and the nose clip is made of polyethylene wrapped aluminum strip. The product is made of two layers of non-woven fabric and a layer of filter film sa