Provide a valuable resource to your clients or customers by linking to this resource page. Just place the following link on your website.
A bag-valve mask is a handheld device used to help move air or oxygen into a person's lungs. It is also called a BVM or resuscitation bag. The device includes a self-inflating bag, one-way valve, and face mask, and it can connect to oxygen. It is used by trained responders during emergencies, anesthesia support, transport, and respiratory failure care.
read more about bagvalve mask ...The mask is placed over the nose and mouth to create a seal. When the bag is squeezed, air or oxygen moves through the valve and into the lungs. The bag refills on its own after release. Good technique matters because poor seal, blocked airway position, or squeezing too fast can reduce ventilation or push air into the stomach.
A bag-valve mask can be used when a person is not breathing, is breathing too poorly, or needs support before a breathing tube is placed. It is used during cardiac arrest, overdose, trauma, severe breathing failure, and transport. It can also be used with advanced airways in some settings. The device should be used with monitoring and clinical assessment whenever possible.
BVMs come in adult, child, and infant sizes. The mask and bag size should match the patient because oversized or undersized equipment can make ventilation unsafe or ineffective. Attachments can include oxygen tubing, reservoir bags, filters, PEEP valves, or airway adjuncts. The setup depends on the patient, setting, and care plan.
Staff should check the bag, mask, valve, oxygen connection, reservoir, and filter before use. Ventilation should be watched for chest rise, oxygen level, resistance, and patient response. Excessive pressure or fast ventilation can raise the risk of stomach inflation or lung injury. Training and teamwork improve mask seal and airway positioning.
No. A bag-valve mask is a handheld manual ventilation device, while a ventilator is a machine that delivers breaths through programmed settings. Both can support breathing in different situations.
Yes, but two-person technique often creates a better mask seal and more controlled bag squeezing. The best approach depends on staffing, patient size, and airway difficulty.
It can deliver room air by itself, but connecting oxygen can raise the oxygen concentration delivered. Emergency and clinical teams often connect oxygen when available.
A poor mask seal, facial hair, vomit, secretions, airway obstruction, poor head position, or wrong mask size can make ventilation difficult. Suction, repositioning, or airway adjuncts can be needed.
Bag-Valve-Mask Ventilation. StatPearls, NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK441924/. Date Accessed May 27, 2026.
How To Do Bag-Valve-Mask Ventilation. MSD Manual Professional Edition. https://www.msdmanuals.com/professional/critical-care-medicine/how-to-do-basic-airway-procedures/how-to-do-bag-valve-mask-bvm-ventilation. Date Accessed May 27, 2026.
Part 7: Adult Basic Life Support. American Heart Association. https://cpr.heart.org/en/resuscitation-science/cpr-and-ecc-guidelines/adult-basic-life-support. Date Accessed May 27, 2026.
Manual Resuscitator. WHO Health Technologies MEDEVIS. https://medevis.who-healthtechnologies.org/devices/CSD_307. Date Accessed May 27, 2026.
Understanding Your Bag-Valve-Mask Resuscitator. PubMed Central. https://pmc.ncbi.nlm.nih.gov/articles/PMC10201401/. Date Accessed May 27, 2026.