Article Figures & Data
Figures
- Fig. 1.
Picture of bubble PEP devices. A: Bubble-PEP-3cm with water at the 13 cm mark, tubing resting 3 cm from the base of the container, and height of water in tubing 10 cm. B: Bubble-PEP-0cm with water at the 10 cm mark, tubing resting at the base of the container, and height of water in tubing 10 cm. C: AguaPEP with water at the 10 cm mark, tubing resting on the base of the container, and height of water in tubing 10 cm. D: Hydrapep with water at the 10 cm mark, tubing resting on the base of the container, and height of the water in tubing 10 cm. E: Therabubble with water at the 10 cm mark, tubing resting 4 cm from the base of the container, and height of water in tubing 6 cm.
- Fig. 2.
Experimental setup. Arrows indicate direction of air flow.
- Fig. 3.
Flow and positive expiratory pressure (PEP) relationship for Bubble-PEP-3cm, Bubble-PEP-0cm, AguaPEP, Hydrapep, and Therabubble devices. Error bars indicate SD.
- Fig. 4.
Oscillation frequency in relation to flow for each bubble-positive expiratory pressure (PEP) device. Error bars indicate SD.
