3 Pack Oxygen Mask Pediatric Standard with 6.6' Tube & Adjustable Elastic Strap - Size S S-3pcs（Child） beesfit you can use another piece

you can use another piece

The lenses are made of high quality optical glass with muilcoating that provides wide field of vision and deep depth of vision

Distance max up to 500 meters/1640ft

Storage method: Direct sunlight

please kindly know cotton fabric would be little washing shrinkage

3 Pack Oxygen Mask Pediatric Standard with 6.6' Tube & Adjustable Elastic Strap - Size S S-3pcs（Child） beesfit you can use another piece3 Pack Oxygen Mask Pediatric Standard with 6. 6' Tube & Adjustable Elastic Strap Size S Ensure your child's safety and comfort with this 3 pack of pediatric oxygen masks. Designed with a standard size M, these masks feature a 6. 6 foot tube and adjustable elastic straps for a secure fit. The soft, flexible material conforms to your child's face, providing reliable oxygen delivery during medical emergencies or treatments. Lightweight and portable,