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

Anti-Ligature Ventilation Plenum - steel grille for safe air in wards
Anti-ligature Ventilation Plenum is a secure air distribution unit for mental health environments, connecting circular ductwork to IP3X-rated anti-ligature grilles. Made from 1.5mm Zintec steel, it supports infection control with BioCote® antimicrobial finish. Available in grille sizes 200×200mm, 300×300mm, and 450×450mm, each with matching plenum
Anti-ligature ventilation grille - steel cover for secure air vents
Contour anti-ligature ventilation grilles are made from 1.5mm Zintec or Magnelis steel and designed to reduce ligature risks in mental health and care environments by covering standard ventilation grilles. Grilles have an IP3X rating, antimicrobial powder coating and security fixings for authorised access. Standard and bespoke sizes available- PRODUCT
Contour Heating Products
DRG rectangular terminals are designed for small air flows, the air being supplied to the room at low velocity. Units are mounted under seats in the riser of the steps. The spread pattern is easily adjustable using rotatable discs. They are suitable for rooms where many small units can be spread out for the best possible distribution of supplyMulticore IC multidirectional diffuser
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Multicore IC diffuser is a versatile form of air terminal offering multidirectional throw patterns in a wide range of frame sizes. Each core style has two position settings within the frame, allowing conventional horizontal diffusion when lowered or vertical projection when raised. The cores are fitted with quick release safety cords as standard- PRODUCT
- Brooke Air
Drum jet diffuser
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Drum jet diffusers are used for supply and exhaust ventilation systems. The Brooke Air range of drum jet diffusers are high air capacity terminals designed for applications requiring a long jet throw. They are ideally suited for exposed duct or sidewall installations in sports complexes, atria, factory workshops and warehouses. The drum and guide- PRODUCT
- Brooke Air
Colibri ceiling terminal
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Colibri ceiling terminals are square units designed for supply air distribution. They have adjustable discs in circular or square patterns. They are designed for mounting in modular suspended ceilings, and are suitable for fixed or variable airflows. Diffuser faces have a quick-access feature that helps in installation, commissioning and cleaningCD adjustable blade ceiling supply grilles
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CD grilles are adjustable blade ceiling supply grilles, offering multi-directional throws. The curved profile of the adjustable blades provides complete control of the jet profile and discharge angle, enabling conventional ceiling or free jet patterns to be set. CD1 and CD2 core types are available in sizes ranging from 150x150mm up to 1200x600mm- PRODUCT
- Brooke Air
Pelican diffusers are square, perforated supply and exhaust air units designed for installation in modular or fixed suspended ceilings. The air diffusers can manage the discharge of air substantially below room temperature as well as constant or variable airflows. They are equipped with adjustable air deflectors for flexible distribution patternsTG non-vision transfer air grilles
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TG transfer grilles are suitable for mounting in walls or doors where transfer ventilation is required between adjacent areas. The TG grille features a sight-proof single core. The various frame configurations are all available with an optional removable core. (Not suitable for door mounting). Intumescent core blocks (type BV60) with a 1 hour fire- PRODUCT
- Brooke Air
Slot diffusers - Types VSD and ALS
Visit siteArchitectural woven mesh - stainless steel
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Woven stainless steel 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 meshes are manufactured to suit designers requirements. A very wide variety of styles are available. The frame may be standard angle, tee, and channel- PRODUCT
- Brooke Air
Colibri wall terminal
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Colibri wall terminals are rectangular units designed for supply air distribution. They are fitted with rotating adjustable discs. Rectangular supply air diffusers with rotatable discs. The disc technique enables supply of air above or below room temperature as well as in a horizontal and/or vertical distribution pattern The air diffusers areIDB under-sill induction unit
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IDB is an under-sill induction unit with 2- or 4-pipe heat exchanger, of compact height, for installation under a sill or on a wall. The condensate drip tray is useful if the temperature temporarily falls below the dew point: high heating and cooling capacity with a low conditioned primary air volume flow rate and low sound power level; high- PRODUCT
- TROX UK
T/TG black out transfer air grilles
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The T/TG type transfer grille is suitable for mounting in walls or doors where transfer ventilation is required between adjacent areas. T/TG grilles have a light-proof double core. The various frame configurations are all available with an optional removable core. (Not suitable for door mounting). Intumescent core blocks (type BV60) with a 1 hour- PRODUCT
- Brooke Air
PER perforated steel grilles
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PER grilles are perforated steel grilles for exhaust air applications. Perforated types are manufactured as standard with a 4.5mm diameter hole format having a 45% free area, but a wide variety of decorative hole formats are also available with varying free areas. They are available with removable cores for ease of access and cleaning. Additional- PRODUCT
- Brooke Air
KE supply air valve
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KE air valves are air terminals for supply applications. They are ideally suited for low air volume applications such as domestic residences or hotel rooms. They have an aerodynamically profiled, adjustable and lockable centre cone which is designed to provide an easy method of flow regulation, with minimal influence on the noise level. Gloss- PRODUCT
- Brooke Air
EXP expanded mesh grilles
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EXP grilles are expanded aluminium mesh grilles for exhaust air applications. They are available with removable cores for ease of access and cleaning. Additional options include border styles, fixings, finishes and plenums. The standard finish is satin anodised aluminium. An opposed blade volume control damper is available. The standard fixing- PRODUCT
- Brooke Air
Ceiling Swirl Diffusers
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TROX is able to manufacture a range of ceiling swirl diffusers to meet most requirements including: fixed or adjustable blades; all types of ceiling system including exposed ceilings; manual or motorised adjustment; circular or square diffusers; supply and extract air; variable and constant flow volumes; very high ceiling applications; offices andArchitectural woven mesh - brass
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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 requirements. A very wide variety of styles are available. The frame may be standard brass angle, tee, and channel. Various- PRODUCT
- Brooke Air
IBIS disc duct diffuser for supply air
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IBIS duct diffusers are supply air terminals suitable for constant or variable flow, and for heating as well as cooling. They feature adjustable discs that allow the throw pattern to be configured in an infinite number of ways between horizontal and vertical spread. Throw patterns with simultaneous horizontal and vertical distribution are alsoFB linear bar grilles
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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, for continuous applications, in single sections up to 3m. All core types are optionally available as removable items, or- PRODUCT
- Brooke Air
Eagle ceiling terminal
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Eagle ceiling terminals are square units designed for supply air distribution. They have adjustable discs that enable the supply of air of a substantially lower temperature than that of the room. Diffuser faces have a quick-access feature that helps in installation, commissioning and cleaning: also available in the Extract air version; suitableBlade floor ventilation grille
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Floor grilles are made to order. They are available framed and unframed in a number of different finishes- PRODUCT
- A & H Brass
CKD adjustable jet diffuser
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CKD adjustable jet diffusers are designed for ceiling installation and have aerodynamically shaped outlet cones. The CKD is a circular multi-cone jet diffuser for ceiling or wall mounting. It can handle extremely large air flows at low sound levels. It is suitable for constant or variable air flow. Can be supplied at under- or over-temperatures

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