Architectural Diffusers
Ventmann manufactures an exquisitely elegant frameless gypsum diffuser range of modern 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.
Functional, Aesthetic Design
Modern air vent covers
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.
Download the technical catalogue below to see how to integrate Ventmann diffusers into your HVAC design.

Technical specifications & installation guide
Ventmann diffusers are much more than an interior design solution: they are engineered to deliver comfortable airflow exactly where you need it most. For detailed technical specifications, 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.