Architectural Diffusers

​Ventmann manufactures an exquisitely elegant range of modern frameless gypsum diffuser air vent covers for HVAC systems that seamlessly blend into their environment, maintaining the integrity of your interior design.

If you’re looking for a near-invisible minimalist vent for your plasterboard wall or ceiling, Ventmann has the solution.  

Our range includes slotted linear diffusers or grilles as well as circular and square diffusers. They are widely used in both commercial and residential applications where an architectural finish is required.

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Functional, Aesthetic Design

Modern Air Vent Covers

Frameless wall vent in calm hallway

Our Vision

We believe ventilation diffusers and grilles should be as aesthetically pleasing and durable as possible. 

We understand how much you care about your design. That’s why we ensure the highest quality standards of our products, so you can be confident that Ventmann linear grilles and air diffusers are an excellent choice. 

A hidden diffuser will mean that the eye will be drawn to what's important - your design.


Our Products

Manufactured in linear, round and square we have a solution for almost every situation.  Our linear diffusers can be connected end to end to allow a continuous line across the entire surface whilst providing full-width air flow.  We are very proud to announce that our latest range of coanda diffusers have won the prestigious Red Dot design award.


Our Service

Ventmann diffusers are much more than an interior design solution: they are engineered to deliver comfortable airflow exactly where you need it most. For our detailed technical specifications and installation guide, download our full catalogue now.  The catalogue shows our slot linear diffuser range first, then other ceiling diffuser types of architectural grille for use in commercial and residential designs.

Technical Catalogue