ResMed Leak Port (Ventilator Circuit Component)

Description

Quick answer: This is the genuine ResMed Leak Port (part 24976) — an intentional-leak (exhalation) port used in single-limb ventilator breathing circuits with ResMed devices that have alarms (Stellar, Astral). Its vent holes allow continuous airflow that washes out exhaled CO₂. It’s used in non-invasive and invasive low-dispersion circuits (invasive use is with an uncuffed or deflated-cuff tracheostomy tube). Important safety note: the Leak Port does not contain an anti-asphyxia valve (AAV) — ResMed recommends using the ResMed Leak Valve (Americas: 24991) in its place, because the Leak Valve adds an AAV that opens to room air if the ventilator fails. This is a clinician-directed, life-support circuit component.

Important — safety (no anti-asphyxia valve)

This is a life-support ventilation component, and its safety behaviour matters:

• The Leak Port has no anti-asphyxia valve (AAV). It relies entirely on the ventilator’s own alarms to detect a problem. It may only be used in circuits with ResMed alarmed devices (Stellar, Astral).
• The ResMed Leak Valve (24991 Americas / 24988 ROW) performs the same intentional-leak function but adds an integrated AAV, which opens to room air on ventilator failure to prevent rebreathing of exhaled CO₂. ResMed recommends using the Leak Valve in place of the Leak Port.
• Circuit configuration, component choice, and settings are determined by the patient’s clinical/respiratory-care team. Vent holes must never be blocked. Follow the device clinical guide and the component instruction sheet.

This listing is informational and is not medical advice.

What’s included

• 1 × ResMed Leak Port (part 24976)

Circuit, ventilator, filter, and other components not included.

About this part

In a single-limb ventilator circuit, exhaled gas is cleared through an intentional leak — a vented component that lets a continuous flow escape so CO₂ is washed out rather than rebreathed. The Leak Port is that vented component: it sits in the circuit near the patient interface and provides the vent holes for CO₂ washout.

• Intentional-leak / exhalation function — continuous airflow through the vent holes clears exhaled CO₂.
• Non-invasive and invasive low-dispersion circuits — for invasive use, with an uncuffed or deflated-cuff tracheostomy tube.
• ResMed alarmed devices only — Stellar and Astral (the alarms are the safety net, since there’s no AAV).
• Historically also used as an alternative when Leak Valves were in short supply (e.g. during COVID-19 demand), under specific ResMed guidance.

Compatibility: ResMed Stellar and Astral ventilators (and other ResMed alarmed ventilators per the compatibility guide). Confirm against the patient’s prescribed setup.

Leak Port (24976) vs Leak Valve (24991) — choose with your clinical team

• 24976 Leak Port (this) — intentional leak, no AAV; relies on device alarms.
• 24991 Leak Valve (Americas) / 24988 (ROW) — same leak function plus an integrated anti-asphyxia valve; ResMed’s recommended choice in place of the Leak Port.

If you’re specifying a circuit, discuss which is appropriate with the clinical team — the Leak Valve’s AAV provides an added layer of protection.

Key features

• Genuine ResMed Leak Port (24976) — intentional-leak/exhalation port.
• CO₂ washout — continuous flow through the vent holes.
• Non-invasive & invasive low-dispersion circuits — Stellar/Astral (alarmed devices).
• No anti-asphyxia valve — relies on device alarms (see safety note).
• Leak Valve (24991) is ResMed’s recommended alternative — adds an AAV.

Specifications

Frequently asked questions

What does the Leak Port do?
It’s the intentional-leak/exhalation port in a single-limb ventilator circuit — its vent holes allow continuous airflow that washes out exhaled CO₂.

Which devices does it work with?
ResMed alarmed ventilators — Stellar and Astral. It must not be used with devices that don’t have alarms, because it has no anti-asphyxia valve.

How is it different from the Leak Valve (24991)?
The Leak Valve performs the same leak function but adds an integrated anti-asphyxia valve (AAV) that opens to room air if the ventilator fails, preventing CO₂ rebreathing. ResMed recommends the Leak Valve in place of the Leak Port.

Can it be used for invasive ventilation?
Yes — in invasive low-dispersion circuits with an uncuffed or deflated-cuff tracheostomy tube, under clinical direction.

Can I choose this myself?
No — circuit configuration and component choice are determined by the patient’s clinical/respiratory-care team.

Do I need a prescription?
This is a life-support ventilator component used under clinical direction. Contact us to confirm requirements.

How is it delivered?
Given the clinical nature of ventilator components, please contact us to confirm availability and delivery options.

This is a component of a life-support ventilation system and does not contain an anti-asphyxia valve. ResMed recommends the ResMed Leak Valve (with integrated AAV) in its place. Component choice, circuit configuration, and settings are determined by the patient’s clinical team; never block the vent holes. Follow the device clinical guide. This listing is informational and is not medical advice.