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Independent Lab Noise Study of HFCWO Therapy Vests

Peak Audible Noise Levels of HFCWO vests at 0.3 meters (1 foot), per IEC 60601-1


*Decibel Level Comparison Chart – Yale Environmental Health and Safety,

The comparison measurements were conducted at F2 Labs, an independent, 3rd party, ISO/IEC 17025 accredited testing laboratory.
16740 Peters Road, Middlefield, Ohio 44062.

This noise test was funded by International Biophysics Corporation, manufacturer of AffloVest, the first fully mobile mechanical oscillation airway clearance therapy vest.