Adult Non Rebreather Mask with Tubing & Reservoir Bag

This adult non rebreather mask comes with tubing and a 750ml reservoir bag. It has three low-resistance, latex-free check valves - two of them external - that let exhaled gas escape while preventing rebreathing, and the adaptor swivels so the patient can be repositioned without kinking the line.

Why choose a non rebreather mask

The reservoir bag is what makes a non rebreather mask a high-concentration oxygen device. Oxygen fills the bag between breaths, so the patient draws from a reservoir of near-pure oxygen instead of diluting each breath with room air - which is why this mask, not a simple face mask, is the one reached for when a patient is critically hypoxic.

The three check valves are the mechanism behind the name. They allow exhaled gas out and stop it being drawn back in, so carbon dioxide is not rebreathed and the reservoir is not contaminated with exhaled air. Being low-resistance matters because a breathless patient cannot work hard to open a stiff valve, and latex-free removes the allergy risk.

One point of technique decides whether it works: inflate the reservoir bag before applying the mask, and run the flow high enough that the bag never fully collapses on inspiration. A bag that empties means the patient is pulling room air and the concentration has dropped - the commonest reason a non rebreather underdelivers in practice.

Key features

• 750ml reservoir bag for high-concentration oxygen delivery
• Three low-resistance check valves - two external
• Prevents rebreathing of exhaled gas
• Latex free
• Swivel adaptor - reposition the patient without kinking the tubing
• Supplied with tubing
• Adult size

Specifications

Common uses

Ambulance and first response, workplace and site emergency teams, surf life saving, and clinical rooms holding oxygen therapy equipment. Different masks answer different oxygen requirements, so services carry a range: a nasal cannula for low-flow supplemental oxygen and an oxygen therapy mask for moderate concentrations. Where the patient is not breathing adequately, a bag valve mask resuscitator is required instead. See our oxygen and resuscitation equipment.