Airbob Kids mask -Airbon Kids mask use nano filters for our children to breathe easily and safely. Light, breezy, made especially for kids -Moisture-resistant, durable and even re-usable -KC KOREA FITI TEST -PH Test : Safely Standard -Formaldehyde: N/D -Arylphenol: N/D -Nonylphenol: Safety Standard -Allergic Fabric: Safety Standard Size information Width 5.8inch Height 4.3inch Ear-band: 6inch For more detail, please see the link below. AIRBON KIDS Mask Special care for our children Soomlab (soomlab-korea.com)