ERGOVENT RONDO COANDA
Round Frameless Gypsum Diffuser


RONDO COANDA 100 / 125
Round frameless gypsum diffuser that delivers air along the ceiling surface using the Coanda effect. Ideal for spaces where people sit or work directly beneath the diffuser.
Key Features:
Application: air supply and extraction
The Coanda effect design directs airflow along the ceiling instead of downward
Internal plastic shield protects the gypsum cap from edge damage
Factory-supplied fiberglass mesh included, no cutting or sourcing needed
Solid, bubble-free gypsum body with paint-ready surface
Compatible with metal, flexible, or plastic duct systems
Adjustable fasteners fit all drywall thicknesses
Ultra-quiet operation
Recommended airflow up to 53 CFM (90 m³/h) per diffuser
Connection sizes: 3.9 in (100 mm), 4.9 in (125 mm)
Minimum required installation space: 5.51 in (140 mm)








ERGOVENT RONDO COANDA
Round Frameless Gypsum Diffuser


RONDO COANDA 100 / 125
Round frameless gypsum diffuser that delivers air along the ceiling surface using the Coanda effect. Ideal for spaces where people sit or work directly beneath the diffuser.
Key Features:
Application: air supply and extraction
The Coanda effect design directs airflow along the ceiling instead of downward
Internal plastic shield protects the gypsum cap from edge damage
Factory-supplied fiberglass mesh included, no cutting or sourcing needed
Solid, bubble-free gypsum body with paint-ready surface
Compatible with metal, flexible, or plastic duct systems
Adjustable fasteners fit all drywall thicknesses
Ultra-quiet operation
Recommended airflow up to 53 CFM (90 m³/h) per diffuser
Connection sizes: 3.9 in (100 mm), 4.9 in (125 mm)
Minimum required installation space: 5.51 in (140 mm)
Key Benefits:
Fast, simple installation
Painted to match the ceiling in any color
No dust rings form around the diffuser
Suitable for single, double, or custom drywall thickness











