Adjustable Venturi Oxygen Mask (2 color diluters)

Medical Disposable Oxygen Mask for Adult/Child with CE and ISO

1. Made of Clear, Medical grade PVC
2. 7 type oxygen density can be adjusted by two diluters.
3. Green:24%/26%/28%/30% 
    White:35%/40%/50%
4. Adjustable nose clip                                      
5. Anti-crush tube
6. With elastic strap                                                        
7. With 2m/2.1m oxygen tube
8.mask szie: XL,L,M,S
9. Latex free & DEHP free available
10. CE, ISO 13485 approved.