Treatment of COVID-19 Positive/Negative Bangladeshi Adults With Severe Respiratory Complaints by a Locally Made bCPAP: Feasibility Study

"In Bubble CPAP, pressurized oxygen from an oxygen cylinder is delivered to the patient. Adjusting the height of the water column above the exit of the tube can regulate the pressure in the system and the amount of CPAP delivered to the patient. Oxygen is delivered by a successfully tested, silicon-based, ergonomically designed adaptive version of nasal canula (nasal seal) inserted into the nostril of a patient.~The components are:~1. Adaptive version of nasal canula (nasal seal)~2. A nasal canula with connecting circuit system~3. Water-filled bottle with marking water pressure from10 to15 L/min.~Oxygen cylinder, central distribution through pipelines or by oxygen concentrator will be used as an oxygen source."