Understanding Vented and Non-Vented Masks in Non-Invasive Ventilation (NIV) Therapy

Vented and non-vented masks are essential components in non-invasive ventilation (NIV) therapies, each serving distinct purposes based on patient needs and equipment configurations.​Vented Masks:

• Integrated Exhalation Ports: These masks feature built-in vents that allow exhaled carbon dioxide (CO₂) to escape directly from the mask.​

• Usage: Commonly used with single-limb circuits in devices lacking an active exhalation valve. The mask's vents facilitate CO₂ clearance, making them suitable for systems without separate exhalation mechanisms.​

• Compatibility: Ideal for use with CPAP and BiPAP machines that do not have dedicated exhalation valves.​

• Non-Vented Masks:

• No Built-in Exhalation Ports: These masks lack integrated vents, relying on the ventilator's circuit to manage CO₂ removal

• Usage: Designed for use with dual-limb circuits or systems equipped with active exhalation valves. The ventilator controls the exhalation process, ensuring effective CO₂ clearance.​

• Compatibility: Suitable for mechanical ventilators and advanced NIV machines with dedicated exhalation management systems.​

• Key Considerations:

• System Configuration: Selecting the appropriate mask depends on the ventilator's design. Using a vented mask with a system already managing exhalation can lead to inadequate pressure delivery, while using a non-vented mask without proper exhalation management can result in CO₂ rebreathing.​

• Patient Safety: Ensuring the correct mask type is crucial for effective therapy and patient safety. Misapplication can compromise ventilation efficacy and patient well-being.​Product Examples:

1. VariFit™ NIV Non-Vented Mask:

   • Features: Single-patient use, AIRºgel® technology for enhanced comfort, compatible with dual-limb breathing systems.​

   • Sizes: Available in four sizes with a sizing guide for optimal fit.​

   • F&P Nivairo™ RT045 Non-Vented Full Face NIV Mask:

   • Features: Anti-asphyxiation valve, RollFit™ seal to minimize nasal bridge pressure, TubeFit™ zones for accommodating nasogastric/orogastric tubes.​

   • Sizes: Extra small, small, medium, and large.​

2. BiTrac Select™ NIV Full Face Mask:

   • Features: Interchangeable non-vented elbow with anti-asphyxiation valve and nebulizer port, suitable for single-limb systems with CO₂ leak ports.​

   • Sizes: Small, medium, large, and extra-large.​