Quick answer: This is a genuine ResMed double-limb breathing circuit (smooth bore, 15 mm) for the Astral ventilator. A breathing circuit is the tubing that carries air between the ventilator and the patient. This is the double-limb configuration — two limbs (inspiratory and expiratory) — in the 15 mm (smaller/paediatric) bore with a smooth interior. Set up and use as directed by the patient's clinical team.
About this circuit
Breathing (ventilator) circuits are the tubing that connects the Astral ventilator to the patient interface. The Astral supports single- and double-limb circuits using interchangeable circuit adapters. In a double-limb circuit, one limb delivers air to the patient and a second limb carries exhaled air back — used with the appropriate ventilation setup. This circuit has a smooth bore (smooth inner wall) for low resistance and is the 15 mm diameter, typically used for smaller or paediatric patients. Because the Astral requires a "learn circuit" procedure when the circuit type changes, follow the clinical team's setup instructions.
Key features
- Genuine ResMed double-limb circuit — inspiratory + expiratory limbs.
- Smooth bore — smooth interior wall for low resistance.
- 15 mm diameter — smaller bore, typically for paediatric patients.
- For the ResMed Astral ventilator — via the appropriate circuit adapter.
- Clinician-directed use — set up per the Astral clinical guide.
Specifications
| Specification | Detail |
| Product type | Ventilator breathing circuit (double limb) |
| Bore | Smooth bore |
| Diameter | 15 mm |
| Configuration | Double limb (inspiratory + expiratory) |
| Compatible ventilator | ResMed Astral (via circuit adapter) |
| Typical use | Smaller / paediatric patients |
| Prescription | Required — clinician-directed |
| Brand | ResMed |
Is it right for my setup?
Breathing circuits come in different types, diameters (10, 15, or 22 mm), and configurations (single vs double limb). The right circuit depends on the patient and the prescribed ventilation setup — your clinical team will advise which circuit to use and how to assemble it. The Astral requires a "learn circuit" step whenever the circuit type is changed. If you're unsure whether this 15 mm double-limb smooth-bore circuit matches your prescription, confirm with your provider before ordering.
Frequently asked questions
What is a double-limb circuit? It uses two limbs — one to deliver air to the patient and one to carry exhaled air away — as opposed to a single-limb circuit.
What does "smooth bore" mean? The inner wall of the tubing is smooth (rather than corrugated), which offers low resistance to airflow.
Who is the 15 mm size for? The 15 mm bore is a smaller diameter, typically used for paediatric patients. Your clinical team confirms the correct size.
Which ventilator does it fit? The ResMed Astral, using the appropriate circuit adapter.
Do I need a prescription? Yes — ventilator circuits are used under clinical direction. Confirm your prescribed setup with your provider.
Can I get it delivered in Brooklyn or shipped nationwide? Yes — Task Supply Corp offers USPS shipping throughout the continental U.S., plus local pickup and delivery in Brooklyn and all five boroughs of New York City.
This is a prescription medical device accessory for use under clinical direction. Follow the Astral clinical/user guide and your healthcare team's instructions, including the required "learn circuit" procedure.