... Low Resistance to Breathing d) Nose Bar Adaptable Our face mask have been gotten the Nelson CertificateCharacteristic:1) Earloop2) ... Soft,Comfortable,odorless,breathable4)No stimulus to human skin5)Filter pollen,dust and bacteriaSpecification:1) Material: 3Ply 20 ... as white,blue,green and etc.5)Filter pollen,dust and bacteria Disposable baby face mask;Three Layer mask,Disposable medical face mask