FAQ Level 3 Award for First Responders on Scene: Emergency First Responder (RQF) FROS® - Online Blended Part 1

219 videos, 11 hours and 53 minutes

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Bag Valve Mask Equipment

Video 35 of 219
2 min 18 sec
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Exploring the Components of a Bag Valve Mask


A bag valve mask (BVM) is a crucial tool in emergency medical care, providing manual ventilation to patients who are unable to breathe adequately on their own. Let's delve into its key components and functionalities.

Components of a Bag Valve Mask

Face Mask

  • Cushioned Surface: Features a soft rubber surface that ensures a snug and comfortable seal on the patient's face.
  • Shape: Designed with a pointed part to fit securely over the bridge of the nose, enhancing the seal and fit.

Inflation System

  • Inflation Cuff: Can be inflated or deflated using a one-way valve and syringe to adjust cuff pressure as needed.


  • One-way Valve: Allows airflow into the airway while preventing air from returning to the bag during ventilation.
  • Blow-off Valve: Releases excess pressure to prevent overinflation of the lungs.

Oxygen Delivery

  • Silicon Bag: Fills with oxygen from the oxygen cylinder, featuring a handle for easy grip and manipulation.
  • Plastic Bag: Receives oxygen from the cylinder, transferring it to the silicon bag for delivery to the patient.
  • Oxygen Port: Allows direct connection to an oxygen cylinder for oxygen supply.

Usage and Adaptability

  • Adult and Paediatric Sizes: Available in different sizes to accommodate patients of varying ages and sizes.
  • Tracheotomy Use: Particularly useful for patients with tracheotomies, providing effective ventilation through the tracheostomy vent.


  • Oxygen Loading: Provides 98% oxygen saturation to the patient when connected to an oxygen cylinder.
  • Breath Delivery: Each squeeze delivers one breath, with an optimal duration of one second per breath.


The bag valve mask is a versatile and essential tool in emergency medical situations, offering reliable manual ventilation and oxygen delivery to patients in need.