RecruitingDevice studyNon-Invasive Respiratory MonitorThis study will clinically evaluate a newly developed respiratory monitor - pneuRIP. The pneuRIP uses Respiratory Inductance Plethysmography (RIP) bands to measure key breathing indices non-invasively. This study compares the pneuRIP to an existing Respitrace system (Carefusion, Yorba Linda CA). 10 normal children and 10 children with breathing difficulties will be monitored with both systems.