Use case
For an HVAC contractor, a diffuser has to work first: deliver the airflow, connect cleanly to the duct, and install without holding up the ceiling trades. The fact that it happens to be invisible is the architect's win — not a reason to compromise the engineering.
ERGOVENT concealed diffusers deliver supply and extract like any terminal, with connection details confirmed per model and coordination support through installation.
Concealed does not mean approximate. An outlet that is invisible but undersized creates noise and comfort complaints; one that is oversized wastes ceiling space. And on site, an awkward connection or unclear installation sequence costs time between the ductwork and the ceiling trades.
Contractors need real airflow and connection data, and a supplier who coordinates with the works rather than dropping a box on site.
ERGOVENT diffusers connect to the supply or extract duct and mount into the plasterboard opening during second fix. Connection sizes and airflow are confirmed per model against current manufacturer data — so your calculations rest on real figures, not estimates.
We coordinate positions, connections and sequencing directly with your team, and provide the documentation you need to install correctly the first time.
Recommended products
The families most often specified for this kind of project — final model selection is confirmed against your requirements.
Round concealed point diffuser — a discreet circle of air, flush with the surface and painted to match.
Best for: Round ceiling or wall integration — renovations and room-by-room ventilation.
Concealed linear slot diffuser — ventilation as a single clean line across the ceiling.
Best for: A linear, minimal ceiling detail in living spaces and suites.
Square concealed point diffuser — crisp geometry that disappears into the painted surface.
Best for: Square geometry that follows rectilinear interiors and joinery lines.
Design & installation
To fit the diffusers cleanly into the works, confirm:
All technical data must be verified against the current manufacturer documentation for your specific configuration before specification and installation.
Gallery
Send your drawings, BOQ or ceiling plan and the project location — our Thailand team will recommend models, confirm the configuration and prepare a quotation.