dhl 3 layer mask dust protection masks disposable face masks elastic ear loop disposable dust safety mask face mask

features: 1. three layers of protection: non-woven outer layer + filter paper layer + skin-friendly non-woven inner layer. breathable and comfortable, low breathing resistance. 2. plasticity strip of the bridge of the nose, hide the side of the bridge of the nose. more suitable for all face shapes. 3. high elastic flat ear strap. does not strain the ears. 4. inner layer: skin-friendly non-woven fabric. soft and comfortable reduces the possibility of skin irritation.