Diffusers and grilles are used to provide a covering to ventilation terminals. They are typically found where air conditioning or extraction systems are installed such as in hotels, offices, schools and other public buildings. Read More

Displacement units can direct supply air in the desired direction and include fixed blade, louvred, bar and deflection diffusers.

An air valve is an adjustable diffuser that can be opened and closed on demand.

Different types of grille are available for exhaust air, return air and transfer air.

Decorative grilles are used where appearance is important, and can be specified in finishes such as polished brass, chrome or nickel. They typically have a perforated, mesh or linear slot format. 

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Diffusers and grilles - helping you find the best solution for your project.

  • TROX UK: Floor Diffusers
    Floor Diffusers
    TROX UK
    Type AFG heavy-duty floor grilles are made of aluminium and have fixed horizontal blades. Single ventilation grilles suitable for raised access floor systems: nominal size 600 x 600mm; volume flow rate range 0-530 l/s or...
  • TROX UK: Ceiling Swirl Diffusers
    Ceiling Swirl Diffusers
    TROX UK
    TROX is able to manufacture a range of ceiling swirl diffusers to meet most applications including: fixed or adjustable blades; manual or motorised adjustment; circular or square diffusers; supply and extract air; variable...
  • TROX UK: Ventilation grilles - floor installation
    Ventilation grilles - floor installation
    TROX UK
    TROX offers single ventilation grilles and horizontal run sections with special profiled blades. Nominal sizes: 300x75-1800x300mm and horizontal run sections. Volume flow rate range: 17-1350 l/s or 6-4860 m³/h. Grille face...
  • TROX UK: Type DJ high-capacity drum jet diffuser
    Type DJ high-capacity drum jet diffuser
    TROX UK
    Type DJ high-capacity drum jet diffuser for long throw, supply air applications. Suitable for exposed duct mounting or sidewall installations; volume flow rate range 138-2000 l/s or 500-7200m3/h; grille face made of...
  • TROX UK: Construction of TROX UK's new warehouse is completed
    Construction of TROX UK's new warehouse is completed
    TROX UK
    Construction of a new storage and distribution building for TROX UK on Caxton Way in Thetford has been completed and officially handed over by the project team. Designed by Rees Pryer Architects and built by Mixbrow...
  • TROX UK: Ventilation grilles - wall, sill and duct installation
    Ventilation grilles - wall, sill and duct installation
    TROX UK
    TROX is renowned for its grille and diffuser manufacture. With an extensive product range, the ventilation grilles available cover many applications and requirements
  • Elefant Gratings: Type SP steel floor ventilation grilles
    Type SP steel floor ventilation grilles
    Elefant Gratings
    Elefant Gratings offers Type SP steel floor panels that are suitable for ventilation applications
  • TROX UK: Slot diffusers (Types VSD and ALS)
    Slot diffusers (Types VSD and ALS)
    TROX UK
    Slot diffusers are a very popular product within the TROX family of grilles and diffusers. They are generally suitable for continuous assembly and can be inconspicuously installed parallel to linear light arrays: diffuser...
  • Brooke Air: RCSD reversible louvre grilles
    RCSD reversible louvre grilles
    Brooke Air
    RCSD grilles are are adjustable supply air grilles with a reversible louvre. The RC reversible core grille is particularly suited to cill and sidewall applications requiring an attractive, versatile air terminal. The close...
  • Brooke Air: RGD Rigidcore floor grille
    RGD Rigidcore floor grille
    Brooke Air
    RGD Rigidcore grilles are designed for use with under floor perimeter heating or ventilation systems and are ideal for applications requiring a lay-in core. Rigidcore grilles are available in section lengths up to 600mm and...
  • Britannia Architectural Metalwork: 9
    9"x3" (225 x 75mm) Air Bricks
    Britannia Architectural Metalwork
    Britannia offer air bricks for internal and external ventilation. Our airbricks are manufactured in the UK and available from stock in Aluminium or Cast Iron.
  • Brooke Air: MRA circular diffusers
    MRA circular diffusers
    Brooke Air
    MRA circular diffusers are high capacity air terminals specifically designed to suit applications such as atria, auditoria or industrial premises. The core position is adjustable via a central screw thread, giving...
  • Brooke Air: Architectural perforated grilles - aluminium
    Architectural perforated grilles - aluminium
    Brooke Air
    Perforated aluminium mesh is offered for use with natural, convection or forced ventilation systems, for supply or extract applications, to cloak apertures or enhance design. Handmade punched meshes are manufactured to suit...
  • Brooke Air: FB linear bar grilles
    FB linear bar grilles
    Brooke Air
    The FB type Linear grille offers a wide range of blade formats to meet both architectural and system requirements and is ideally suited to sidewall, bulkhead or cill applications. Grilles can be supplied in modular units or,...
  • Brooke Air: Architectural woven mesh - brass
    Architectural woven mesh - brass
    Brooke Air
    Woven mesh is offered for use with natural, convection or forced ventilation systems, for supply or extract applications, to cloak apertures or enhance design. Handmade woven brass meshes are manufactured to suit designers...
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Diffusers and grilles- helping you find the best companies for your project.