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Air Diffusion

Discover our complete range of air diffusion solutions: grilles, diffusers, valves, dampers, and air displacement units. Technical and aesthetic products designed to ensure comfort, energy efficiency, and optimal air quality in all your HVAC projects.... Voir plus

Air Diffusion solutions for professionals

Air diffusion is an essential element of any high-performance HVAC system. At Cairox, we offer a complete range of air diffusion products designed to meet the strictest requirements of HVAC professionals.

A complete range for all your applications

Our air diffusion offering includes several product families adapted to different needs:

  • Ceiling diffusers: linear, slot, perforated, Coanda effect, design plaster for perfect architectural integration
  • Wall and floor grilles: in aluminum, steel, or composite materials, for supply or return air
  • Exhaust valves: standard or self-regulating, for residential and commercial applications
  • External louvres: rectangular in aluminum, for facades and air intakes
  • Air displacement units: for efficient and silent stratification ventilation
  • High induction perforated ducts: for homogeneous diffusion in large volumes

Applications and Sectors

Our air diffusion solutions adapt to all types of buildings and requirements:

  • Offices and workspaces
  • Retail and hospitality
  • Healthcare facilities
  • Educational buildings
  • Industrial installations
  • Collective housing

Technical advantages and performance

Cairox air diffusion products stand out for:

  • Optimized design for maximum thermal and acoustic comfort
  • Aeraulic performance validated in laboratory according to ISO 5219, EN 12238 standards
  • Great flexibility in installation and adjustment
  • Aesthetic and customizable finishes
  • Compatibility with variable air volume systems
  • Design solutions for perfect architectural integration

Compliance with standards and regulations

All our air diffusion products comply with current thermal regulation requirements and meet European performance and safety standards. Our solutions actively contribute to improving indoor air quality, a major public health issue.

Cairox expertise at your service

Beyond products, Cairox supports you with:

  • Selection and sizing tools
  • Comprehensive technical documentation
  • Personalized technical support
  • Training on air diffusion best practices

Choosing Cairox for your air diffusion solutions means opting for high-quality products, recognized technical expertise, and customized support for all your HVAC projects, in line with our commitment: ""Improving Air Because We Care"".

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Your Frequently Asked Questions

The choice of diffuser depends on several factors: type of room, ceiling height, thermal loads, air flow rates, acoustic and aesthetic constraints. For optimal comfort, prefer Coanda effect diffusers for ceiling air conditioning applications, adjustable blade grilles for wall applications, and air displacement units for large volumes. Our Cairox experts can assist you in this selection according to your specific needs.

A grille is generally made up of fixed or adjustable blades allowing the air flow to be directed in one or more directions. It creates a conical air stream with a relatively low induction rate. A diffuser, on the other hand, is designed to create a more homogeneous diffusion of air, often radial or multidirectional, with a better induction rate allowing more efficient mixing with ambient air. Diffusers are generally preferred for applications requiring better thermal comfort.

The main references are ISO 5219 and EN 12238 standards for the aeraulic performance of diffusers, the NF EN 13779 standard for ventilation of non-residential buildings, and national thermal regulations. These standards define requirements in terms of fresh air flow rates, air velocities in occupied areas, sound levels, and ventilation efficiency. All our Cairox products are tested and comply with these requirements.

To minimize noise, several solutions exist: choose diffusers with low intrinsic acoustic levels, correctly size installations to avoid excessive velocities, use insulated acoustic plenums like our LINE-BOX or WING-BOX-I models, install silencers on networks, and ensure installations are properly balanced. Our technical data sheets indicate the acoustic performance (NR) of each product to help you meet the sound comfort requirements of your projects.

Yes, our plaster diffusers such as the GYP-LINE and GYP-P-LINE series are specially designed to be invisibly integrated into plaster ceilings. They can be painted with the same paint as the rest of the ceiling, allowing perfect architectural integration without visual disruption. This feature is particularly appreciated in projects where aesthetics play an important role, such as hotels, retail spaces, or high-end offices.

Good air diffusion is essential for indoor air quality. To optimize it, you should: choose diffusers adapted to the geometry of the rooms, correctly position air inlets and outlets to avoid dead zones, ensure sufficient air mixing rate, maintain fresh air flow in accordance with standards, and regularly maintain filters and networks. Our Cairox diffusion solutions are designed to maximize ventilation efficiency and contribute to a healthy indoor environment.