DucoBox Focus - UK’s quietest and smartest zonal extract unit
DucoBox Focus - UK’s quietest and smartest zonal extract unit
Hurry up, only 10 items left in stock.
The DucoBox Focus is recognised as UK’s most advanced central extract unit, combining exceptional intelligence with ultra-quiet performance. Designed as a next-generation zonal extract solution, it delivers precise and efficient air extraction across the home.
Its integrated, patented CO₂ and humidity control valves automatically regulate airflow to ensure the optimal volume of air is extracted only where needed and exactly when required. This demand-led approach enhances indoor air quality while maximising energy efficiency.
In addition, the built-in NightBoost function helps minimise the risk of overheating by intelligently increasing night-time ventilation, supporting a more comfortable and balanced indoor climate.
Couldn't load pickup availability
Get an extra 10% off and a Credit Limit, subject to T&C - Learn more
Specifications
Specifications
The DucoBox Focus DCV represents the highest-specification smart demand-controlled MEV system in the DUCO range. Designed for continuous extraction from kitchens and bathrooms to a single central unit, it delivers exceptionally quiet, energy-efficient ventilation for modern residential buildings.
Unlike the DucoBox Silent Connect, the DucoBox Focus adds advanced zonal control, allowing up to 11 individual areas to be managed independently. This is achieved through internal humidity and CO₂ control valves integrated directly within the unit, enabling precise room-by-room airflow regulation. All sensors and control options are available as upgrades, allowing the system to be configured exactly to project requirements.
Using intelligent demand-controlled technology, airflow is automatically increased or reduced per zone based on programmed humidity or CO₂ thresholds. This ensures air is extracted only where needed, when required, and in the correct volume, maximising indoor air quality while minimising energy consumption.
Manufactured in Belgium, the DucoBox Focus features double-wall construction and advanced acoustic engineering, making it one of the quietest MEV units available in Europe. With a performance capacity of up to 400 m³/h, it is ideally suited to high-quality new builds and premium renovations with up to seven extract points.
The unit includes seven Ø125 mm inlet connections and one Ø125 mm outlet as standard. With optional Q-V adaptors, it can also be installed using up to seven Ø90 mm crush-proof radial ducts with antibacterial lining, reducing installation time and ensuring compliance with the latest building regulations.
Demand-Controlled Ventilation Philosophy
Traditional MEV systems typically operate continuously at a fixed speed, leading to unnecessary energy use. DUCO moves beyond this outdated approach by offering true on-demand ventilation, ensuring extraction occurs only when necessary and for as long as required.
Depending on configuration, the system can utilise internal humidity detection or optional CO₂ sensors to dynamically adjust performance. This intelligent approach guarantees optimal indoor air quality while using the lowest possible energy input, delivering a genuinely energy-optimised ventilation solution.
Control Valves and External Components
The DucoBox Focus and Silent Connect systems can be paired with a range of internal control valves, optionally equipped with CO₂ or humidity sensors. These valves ensure polluted or moisture-laden air is removed precisely and efficiently.
Airflow rates are factory set but can be manually adjusted during or after installation using the display menu, DUCO Network Tool, or DUCO Installation App.
Available control valve options include:
- CO₂ control valves: 25 / 30 / 75 m³/h
- Humidity control valve: 50 m³/h
- Sensor-less control valve: 25 m³/h
Supported by BPC, recognised MEV specialists and original developers of MEV kits in the UK and Ireland, the system is backed by lifetime technical support, ensuring long-term reliability and performance.
With the DucoBox Focus DCV, DUCO delivers one of the smartest, quietest, and most efficient MEV solutions available today.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
One DucoBox Focus, 11 zones
A single DucoBox Focus ventilation unit can serve up to 11 individual rooms by using an additional control valve manifold, significantly expanding system flexibility. This zonal setup ensures ventilation is delivered only where and when it is required, improving efficiency and indoor air quality.
The Control Valve manifold enables multiple outlet connections to be created from the DucoBox Focus, supporting a fully zoned ventilation layout with up to 11 duct connections, including a maximum of 7 CO₂-controlled zones. This makes the system ideal for modern, demand-driven residential ventilation designs.
All control valves are easily connected using the supplied connector, allowing wiring to be neatly looped directly into the DucoBox Focus. As with all DUCO solutions, cabling remains completely concealed behind the unit cover for a clean, professional installation.
The DucoBox Focus is equipped with an advanced intelligent control board and a patented control valve mechanism integrated within the outlet box. In addition, it benefits from the same high-performance acoustic technology found in the DucoBox Silent, ensuring exceptionally quiet operation as standard.
DUCO – Innovative Ventilation Solutions for Healthy, Energy-Efficient Indoor Living
DUCO is a well-established European specialist in ventilation and solar shading solutions, dedicated to creating indoor environments that are healthy, comfortable, and highly energy efficient. Its innovative systems are designed to optimise natural air circulation, supporting improved indoor air quality in both residential and commercial spaces.
DUCO’s product portfolio, including advanced ventilation grilles and complete ventilation systems, focuses on delivering reliable airflow while minimising energy consumption. User wellbeing remains at the core of DUCO’s approach, with solutions such as the DucoBox Silent offering powerful yet exceptionally quiet ventilation, ensuring long-term comfort and performance within the home.
The DucoBox Focus is a high-performance central extract fan designed for Mechanical Ventilation System C installations. Featuring patented internal control valves, it enables precise zonal extraction of stale, polluted, or moisture-laden air, improving overall indoor air quality.
Capable of delivering airflow rates of up to 400 m³/h at 150 Pa, the DucoBox Focus is ideally suited to demand-controlled residential ventilation. The system is quick to configure, making setup and commissioning straightforward.
Acting as both the drive unit and central controller, the fan serves as the core of the ventilation system, allowing multiple control components to be connected. Using intelligent sensor data from CO₂ and humidity measurements, the system automatically adjusts airflow so ventilation occurs only where necessary, when required, and in the optimal volume, ensuring energy-efficient and targeted air extraction.
DucoBox Focus has seven connections
The DucoBox Focus is equipped with seven standard Ø125 mm connections, each of which can be optionally fitted with an integrated damper control. These dampers are designed for fast and simple installation directly inside the extract unit, ensuring a clean and discreet finish with no visible components once the fan housing is closed.
Damper adjustment is both quick and highly efficient, with all seven dampers calibrated in approximately four minutes. This significantly reduces installation and commissioning time on site.
Each valve is factory pre-set to meet the recommended airflow requirements for individual rooms, while still allowing installers to manually fine-tune settings if needed. Once installation is complete and the unit is fully sealed, the system remains completely concealed, delivering precise airflow control with a streamlined, professional appearance.

Duco Installation App
This application significantly accelerates the calibration of ventilation systems and air valves, streamlining both installation and commissioning.
It also provides access to a comprehensive ventilation report, allows quick identification of error messages, supports software updates, and enables easy downloading of relevant technical documentation—all from one interface.
Key benefits:
- Reduced installation and servicing time
- Minimal administration with digital ventilation reports generated via the app
- Extended warranty eligibility when calibration is completed through the application

