Ambu AuraOnce laryngeal mask #4 321 400 000

The Ambu AuraOnce Laryngeal Mask size 4 (321 400 000) is a single-use, anatomically curved airway device made by Ambu. It features a soft, extra-thin cuff for gentle sealing at low pressure. The mask includes a universal 15 mm connector for easy integration with ventilation circuits.

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SKU 321 400 000 Category

The AuraOnce #4 mask is designed to replicate the natural curvature of the human airway, aiding rapid and atraumatic insertion.  Its cuff and airway tube are molded as a single piece, eliminating risk of separation and increasing reliability.  The reinforced tip prevents back-folding during placement, helping maintain a secure seal. Its soft cuff, only 0.4 mm thick, ensures an effective seal with minimal pressure on delicate airway tissues.

 

Technical Specification

Specification Details
Item / Catalog Number 321 400 000
Size / Patient Weight Range Size 4, for patients ~50–70 kg
Maximum Cuff Inflation Volume 30 mL
Maximum Intra-Cuff Pressure 60 cm H₂O
Connector Type 15 mm (standard ISO)
Material Phthalate-free PVC, disposable

 

Product Also Knows As:

Ambu AuraOnce #4, Aura-Once size 4 laryngeal mask, Ambu disposable LMA size 4, Ambu single-use LMA 321400000, Ambu anatomically curved LMA #4