Circular (CIRCLE) Plaster ventilation outlet
without frame
Performance Circle model, our most versatile and popular unit, is a frameless diffuser that adapts seamlessly to any room or interior design style. This innovative design earned a prestigious Red Dot Design Award nomination in 2023. The product delivers exceptional comfort through its specialized airflow pattern, while embodying the core Ventmann principles of sustainability, performance, and aesthetic versatility. The Circle Coanda’s design successfully addresses a fundamental challenge in the industry: reconciling the physics required for creating the Coanda effect with the stringent aesthetic demands of designers and architects.
- Slot Types: 1-slot or 2-slotoptions
- Connection Diameters: 100mm/125mm, 160mm, and 200mm
- Airflow capacity: 160mm with 1 slot: up to 200 m³/h, 200mm with 1 slot: up to 300 m³/h
Ventmann Diffusers
Crack-Resistant Design
Engineered from a specialized gypsum composite that prevents cracking over time, ensuring a flawless, permanent finish.
No Condensation & Mold
The natural properties of gypsum prevent condensation ("sweating"), completely eliminating the risk of unhealthy mold.
Pristine & Stain-Free Surface
Our unique material composition resists dust and moisture buildup, preventing the dark circles common with other diffusers.
Superior Fire Resistance
Made from a premium, non-combustible gypsum composite (Class A), offering superior fire safety for total peace of mind.
Seamlessly Paintable & Adaptable
Fully paintable to match any interior. Renovate or change your room's color scheme without ever needing to replace the diffuser.
Long-Term Value
A premium, one-time investment that eliminates future costs from cracks, mold, or renovations, delivering superior lifetime value.
View more
Product brochure