Definition

Noun: A breathing device that is placed over the mouth and nose; it supplies oxygen from an attached storage tank. It is primarily used to provide breathable oxygen in situations where the surrounding air lacks sufficient oxygen or is contaminated.

Usage Examples

• Noun:
  • The flight attendant demonstrated how to use the oxygen mask in case of cabin depressurization.
  • Firefighters often carry portable oxygen masks when entering smoke-filled buildings.
  • The patient was given an oxygen mask to help with their breathing difficulty.

Advanced Usage

• "to don/put on an oxygen mask": to place the mask over one's face to begin receiving oxygen.
  • Passengers were instructed to put on their oxygen masks immediately.
• "to administer oxygen via a mask": to provide medical oxygen using this device.
  • The paramedic administered oxygen via a mask to the accident victim.

Variants and Related Words

• Oxygen tank/cylinder (n): The storage container that holds compressed oxygen and is attached to the mask.
• Rebreather mask (n): A specific type of oxygen mask that recycles exhaled air.
• Non-rebreather mask (n): A common type of oxygen mask with a reservoir bag that prevents the inhalation of exhaled or ambient air.

Synonyms

• Breathing apparatus: A more general term for equipment that aids breathing.
• Aviator's mask: A specific type of oxygen mask used by pilots.

Related Phrases

• "Secure your own oxygen mask first": An idiom derived from airline safety instructions, meaning you must ensure your own safety and well-being before attempting to help others.
  • As a leader, remember to secure your own oxygen mask first; you can't help your team if you're burned out.

Noun

1. a breathing device that is placed over the mouth and nose; supplies oxygen from an attached storage tank