UMA ANáLISE DE SLEEP DOCTOR NEAR COLUMBUS OHIO

Unlike a fixed-rate CPAP machine that delivers air at a constant pressure, a bilevel positive airway pressure (BiPAP) machine pushes out air at different rates, depending on whether a sleeper is breathing in or breathing out. Generally, the rate of airflow is higher as a person inhales and lower as a person exhales.If you know anything about Columb