
Healthy, Comfortable Air in Every Room
Ubbink Air Excellent is a smart, flexible air distribution system designed for efficient and reliable ventilation. Whether you're working on a new build or a renovation—big or small—this modular solution adapts seamlessly to your needs. The system includes flexible air ducts and distribution boxes, making it ideal for a wide range of ventilation setups.
- Minimal pressure lost
- Antimicrobial and antistatic material
- Fast, safe installation
- Certified air tightness (Class D)
Explore our brand pages and FAQ's below to find the right components and installation options for your ventilation project.
One System for Complete Air Distribution
The Air Excellent air distribution system becomes even faster and more efficient to install when the valve adapters are pre-installed by the concrete floor supplier. This prefabricated approach reduces installation time, lowers costs, minimises waste, and improves overall installation quality.
Key advantages at a glance:
- No need to measure or mark hole locations
- No drilling required—eliminating drilling costs
- No waste from removed temporary installations
- Valve adapters do not need manual tightening
- No support brackets or plates needed under adapters
- No finishing work required around valve openings
- Speeds up the entire ventilation installation
- Eliminates hidden costs (e.g., damaged ceilings)

Air Excellent System
Distribution Boxes

Working with an Air Distribution Box
Using an air distribution box offers numerous advantages. It simplifies the design process and makes regulating ventilation in individual rooms easier. Additionally, it prevents speech transmission between rooms, which is important for residents.
Design Freedom
The air distribution system channels air from the ventilation unit through the main duct to the air distribution box. This box then distributes the air to various rooms via the connected Air Excellent air ducts. The plastic air distribution box provides significant design flexibility. The boxes are modular and come with adapters for different duct sizes. Depending on the number of ducts to be connected, you can choose between the 200 Series or the 800 Series. The individual branches reduce pressure loss compared to traditional systems, which benefits energy consumption.
Easy Adjustment
Adjustment is straightforward because the ducts run from the cabinet to individual rooms. This setup prevents speech transmission between rooms and minimizes pressure losses. Resistance calculations can be made in advance using our special online calculation program, the Air Excellent configurator, because you ventilate per room. Restriction rings inside the air distribution box regulate the air flows in the connected ducts.
The air distribution boxes can connect to all types of air ducts using adapters.
- Very low pressure loss
- Multiple inspection hatches with EPDM seals
- Easy maintenance
- Low noise thanks to damping set (optional)

Semi-circular or round air ducts
The Air Excellent air distribution system is available in 2 types: Semi-Circular and Circular. Depending on the required ventilation capacity, different sizes are available.
Air Excellent Semi-Circular | Air Excellent Circular | ||||
---|---|---|---|---|---|
Type | Ventilation capacity | Dimensions [mm] | Type | Ventilation capacity | Diameter [mm] |
AE35SC | 33m³/h | 50x100 | AE34C | 34m³/h | Ø63/75 |
AE55SC | 58m³/h | 60x130 | AE48C | 48m³/h | Ø75/90 |


Air Excellent FAQ's
Air excellent
If you install semi rigid duct elsewhere outside of a cold area it does not require insulating.
Back in the early 2000`s it was common to use tape to join ducts along with a non-hardening sealant , this is no longer the favoured option, ducting manufacturers like Ubbink manufacture ducting connections that will provide an airtight seal without using tape or sealant.
In a nutshell , the design determines the air volumes, it the air volumes are high you need larger ducting , if the air volumes are low you can use smaller ducting.

Complete your system
Discover our total solutions!
We offer comprehensive solutions for residential ventilation, a unique specialty we take great pride in!
A complete Ubbink ventilation system comprises five components, from the ventilation unit to the finishing valve:
- Ubiflux heat recovery units: Extremely compact ventilation units for wall or ceiling installation.
- Air Excellent air distribution system: Flexible and modular.
- Aerfoam insulated pipe system.
- Roof terminals: Suitable for flat and sloping roofs, both insulated and non-insulated.
- Haelix supply and discharge valves: Available in round and square designs.
From our unique position, we provide quick, accurate, and reliable advice on our ventilation systems, all from the comfort of your home.
Have an upcoming project and need a complete solution from design to delivery? Explore our MVHR Solutions!