Fig. 7From: Testing positive pressure delivered from commercial and WHO-style pediatric bubble CPAP devicesWHO-style bCPAP device with an F&P circuit connected to a standard high-flow nasal cannula - Measured Pressure [mean (SD), cm H20; note testing only performed at flow rates < 5 lpm]. Testing performed at two submersion depths – 5 cm H20 and 10 cm H20Back to article page