Current NIV interfaces commercially available do not address all size and anatomical gaps present in the pediatric population. To overcome this challenge, nasal mask and nasal prong prototype interfaces have been designed to fill some of the current size gap. These interfaces, known as GentleFit NIV, need to be trialed to ensure appropriateness of design and patient tolerance for 4-8 hour application intervals, as is standard of practice for current devices on the market.