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Alnest™ F1

The Alnest™ F1 mask is a facial mask combining two key technologies: the UniveoTM Delta headgear with Quick Adjust feature and the SOFT cushion with its thin silicone skirt, both designed to provide an optimal therapeutic experience.

Particularly indicated for patients with mouth breathing, high treatment pressures or reduced manual dexterity, this mask adapts to all face shapes and sizes.

Univeo™ Delta universal headgear

Univeo™ Delta is the first innovative headgear designed to help the patients. Its design and 5 adjustment points ensure a good peripheral stability and an homogeneous distribution of support points. 

Its 12 landmarks facilitate the fitting and adjustment of the mask, thus promoting patient compliance with the treatment. By the way, a majority of patients appreciate and recognise the benefits of this system¹. Moreover, the Easy-Peel function makes it easier to adjust and remove the headgear, even for patients with reduced manual skills.

SOFT cushion

The SOFT technology developed in close partnership with experts guarantees a balance between softness and firmness. This silicone cushion thus ensures a reliable seal and comfort for the patient even at high pressures. Available in 3 different sizes, this mask meets the needs of a wide range of patients. The size of the cushion can be determined by measuring the nose using a sizing gauge.

Thin frame

For both CPAP and BiPAP, the thinness of the frame offers a clear field of vision for patients and the flexibility of the forehead adds additionnal comfort and total stability. Indeed, the silicone bumper helps to change the inclination of the frontal branch, ensuring an optimal contact of the cushion with the patient’s face. The ergonomic hooks, meanwhile, make it easy to put on and remove the headgear, while maintaining the defined settings.

1. Evaluation of the Comfort of a Continuous Positive Airway Pressure Nasal Mask in the Treatment of Obstructive Sleep Apnea Syndrome ». Clinical trial registration., 8 juin 2021. 

Mask Fitting and Cleaning guide


Legal mentions

ALNEST F1 is a reusable oronasal mask with calibrated exhalation orifices (Vented), intended to be used at home or in a hospital setting by multiple adult patients (weighing more than 30 kg) who have been prescribed for a non-invasive positive pressure ventilation therapy (NPPV), for example a continuous positive airway pressure therapy (CPAP) or Bilevel positive airway pressure therapy (BiPAP).

Medical device class IIa CE0051. 

Please read the user manual.

Air Liquide Medical Systems, Antony 348 921735 R.C.S Nanterre.