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the Bi-Flex comfort feature provides increased pressure relief during the expiratory phase of breathing
Pediatric Aerosol Mask
Nuance Pro Headgear has yellow highlights and is available elsewhere on this site
Providing cleaner and fresher air flow
Personal Best Full Range Peak Flow Meter ML6 Post Valve Cylinder the Bi-Flex comfort feature providesACCURATE PEAK EXPIRATORY FLOW MEASUREMENTS Philips Respironics Personal Best Peak Flow Meter accurately monitors lung function, measuring the Peak Expiratory Flow (PEF) speed at which air is expelled from the lungs. PEF measurements are an essential tool in gauging how well your lungs and airways are working the higher the PEF the more open your airways, the lower the PEF the more constricted your airways and the more likely you are to be experiencing