Features: Comes in hard yellow case Comes with gloves The Pediatric Pocket Mask has been specially constructed to provide a tighter seal with pediatric faces Expiratory Resistance for Patient - Mask & One-way valve: 4.3 cm H2O Inspiratory Resistance for Patient - Mask & One-way valve: 3.3 cm H2O Non-Latex Shelf Life : 547 days A