Question: what are the different kinds of oxygen mask?
Answer: Simple face mask.
Non re-breather face mask (mask with oxygen reservoir bag and one-way valves which aims to prevent/reduce room air entrainment)
Nasal prongs (low flow)
Tracheostomy mask.
Tracheostomy HME connector.
Isolette - neonates (usually for use in the Neonatal Intensive Care Unit only)