Oxygen therapy flowmeter, dialtype

WHO list of priority medical devices
Various conditions or disease specific
Organ or system related according to ICD-11
Many
Interventions (non-exhaustive list)
Life course
Sex
Type of medical device
Capital, reusable or single-use
Requirements
electricity (mains)
gases (Oxygen)
Consumables
Mask
Level of technical knowledge
Regulatory classification (FDA)

General technical specifications and guidance