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Air Diffusers Ltd.                             Unit 77, Enterprise Centre Michael Way, Warth Park Way, Raunds, 

+44 (0) 1933 697471

Gypsum Diffusers – PERFORMANCE Linear Slot Diffusers

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For pricing information, discounts and availability, please contact our sales team at or call us on 01933 697471


The Ventmann PERFORMANCE Linear Slot Diffuser combines elegant and adaptable design features with a specially
engineered airflow that uses the Coanda effect.

The Ventmann PERFORMANCE LINE vent Linear Slot diffuser combines elegant and adaptable design features with a specially
engineered airflow that uses the Coanda effect, making it ideal for air conditioning. This is a model that empowers you to
craft distinctive interior features or seamlessly conceal the diffusers, while minimizing direct airflow onto users.

The PERFORMANCE Linear Slot Diffuser model features all the hallmarks of a Ventmann diffuser – sustainable materials, frameless
installation, the ability to paint it to match the other surfaces in the space, and design applications ranging from discrete to bold.
What sets it apart from our standard LINE model is its unique shape and engineering, which harness the Coanda effect.

The Coanda effect is an aerodynamic phenomenon that causes a jet of air to be attracted to a nearby surface,
efficiently diffusing the airflow. In practice, this means the current of air spreads out along the ceiling rather than being
blown straight down.

This innovative vent diffuser also incorporates an interior
deflector, adjustable using a simple screwdriver. This deflector enables precise control over the direction of the
airflow, allowing you to direct the air at any desired angle from one side to the other. As a result, building users do not
experience the discomfort of having a strong airflow directed right at them, which is especially important with air
conditioning systems and when dealing with colder air. Ideal for air conditioning use, this model is also suitable for regular
ventilation systems and heat recovery units.

As with all Ventmann diffusers, this is a highly flexible and adaptable unit.

Our PERFORMANCE LINE Linear Slot diffuser is offered in:
• 1-slot, 2-slot, or 3-slot versions
• Standard lengths of 625mm and 1000mm
• Slot width of 20mm

*Price not includes Insulated Plenum Boxes “V” SHAPE


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Additional information

Slot Type

1 Slot, 2 SLot(s), 3 Slot(s)

Slot Width



625mm, 1000mm


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