Ayla has been nervously awaiting her chance to inflate a hot water bottle, and for better or worse, the day has come. She examines the rubber vessel, and then attaches it to her mouthpiece tube, so that she can record the pressure at every stage of the inflation process. Then she takes a deep breath, puffs up her cheeks, and starts the air in - stretching it bit by bit. Where many first-timers get nervous or tired as it grows larger, she becomes more confident and delivers bigger, stronger breaths - until the inevitable big boom happens. Go Ayla!

Ayla has been nervously awaiting her chance to inflate a hot water bottle, and for better or worse, the day has come. She examines the rubber vessel, and then attaches it to her mouthpiece tube, so that she can record the pressure at every stage of the inflation process. Then she takes a deep breath, puffs up her cheeks, and starts the air in - stretching it bit by bit. Where many first-timers get nervous or tired as it grows larger, she becomes more confident and delivers bigger, stronger breaths - until the inevitable big boom happens. Go Ayla!