Industries

Products

Services

Inspiration

About

Buildings

Energy-efficient solutions for healthy indoor climates. Used across all building sectors worldwide.

Retrofits AHU fans

Industry

Robust and efficient ventilation for demanding industrial environments. Designed to handle (contaminated) air, heat, fumes and dust safely.

Process industries Agriculture Drying EC+ concept Mushrooms and greenhouses

Data centres

High-efficiency cooling that lowers energy use and ensures stable uptime. Built to reduce power consumption.

Cooling

Direct Air Capture

High-efficiency axial fan systems for high airflow, low energy use and reliable operation needed to capture CO₂ efficiently at scale.

Tunnels

Jet-fan systems for safe airflow and reliable smoke control in road and rail tunnels. Engineered for reliable and efficient air movement.

Car parks

Jet-fan ventilation for safe airflow and effective smoke control in car parks. Built for efficient ventilation and smoke control in case of a fire.

Smoke-free escape routes

Smoke-control systems that keep escape routes clear from smoke and protect occupants from smoke during fires. Designed for reliability to prevent smoke spread.

Explore all industries

Technologies

Applications

Requirements

Accessories

See all products

ErP Directive

Axial Flow fans

High-efficiency and reliable fans designed for a wide range of land, marine and offshore ventilation systems.

Jet fans

Compact and reliable jet fans for systems requiring reliable ventilation under normal and high temperature conditions.

Centrifugal fans

Robust fans for industrial installations such as composting facilities, greenhouses and other demanding environments.

Air heaters

Efficient and economical solution for heating rooms and building.

Car park ventilation

Ventilation and smoke control solutions for all sizes of parking facilities.

Tunnel ventilation

Reliable airflow and smoke control for road, metro and rail tunnels.

Building ventilation

Energy-efficient ventilation for commercial, residential, public and industrial buildings.

Industrial ventilation

Ventilation systems designed for demanding industrial processes and environments.

Data centre ventilation

Cooling solutions for modern data centres requiring high efficiency and consistent uptime.

Pressure differential ventilation

Advanced pressure differential systems that keep essential escape routes in buildings and tunnels clear of smoke.

Smoke Extraction

For installation in buildings, car parks and road-, train- or metro tunnels.

ATEX and Ex

For safe operation in hazardous land-based, marine, and offshore environments.

Acoustic diffusers

Acoustic diffusers for axial flow fans reduce noise and regain pressure simultaneously.

Anti-vibration mountings

Prevent vibration transfer from the fan unit to the building structure.

Counter flanges

Replicate the hole pattern of the fan flanges for secure mounting.

Diffusers

Recover static pressure and ensure uniform airflow in ducted installations.

Duct spigots

Mount directly to the fan flanges for quick duct connection.

Flexible connections

Create a flexible connection between fans and fixed or movable duct sections.

Inlet cones

Stabilise inlet airflow, improve fan performance, and reduce noise.

Mounting plates

For installation on walls, floors, or other flat surfaces.

Silencers

Reduce sound levels in comfort and industrial ventilation systems.

Spark proof lining

Prevents spark generation in ATEX/EX-certified fans.

Support frames

Provide structural support for heavy fan installations.

Wire guards

Protect against debris or accidental contact with rotating parts on free inlets of fans.

Service and Support

Reliable after-sales support to keep your systems running at peak efficiency.

Sales Support

We provide reliable, high-quality support and services throughout your entire project.

Fan retrofitting guide

Use our video guide and templates to collect retrofit data quickly and accurately.

Software AirBox™

AirBox™ fan selection software. Download it or integrate it into your system.

Parts

Original spare parts for safe and efficient operation of fans, dampers and air components.

Quick selector

Submit your airflow and pressure data to find the right fan solution.

Warranty

Dependable warranty coverage across our product range for long-term performance.

Cases

Real-world projects demonstrating proven performance and practical results with NOVENCO technologies.

News

Updates on new products, solutions and company developments.

Sustainability

Our commitment to sustainability throughout the product lifecycle - from design to end-of-life responsibility.

LEED BREEAM DGNB

Fairs

Events where we present our technologies and meet customers, partners and industry peers.

White Papers

In-depth insights into ventilation technology, energy efficiency, life-safety and industry trends.

About NOVENCO

Discover our history, values and expertise in high-efficiency and reliable ventilation solutions.

History Mission and vision SCHAKO Group QHSE policy

Certificates and Membership

Explore our certifications and industry memberships documenting quality, safety and compliance.

Career

Build your career with NOVENCO and help develop sustainable and reliable ventilation systems worldwide. Explore open positions for diverse profiles.

Patents and Trademarks

See how NOVENCO patents and trademarks protect our innovations and brand worldwide.

Offices

Find NOVENCO offices and partners worldwide for local sales, service and support in your region.

ErP Directive

What the new Ecodesign requirements mean for fans, documentation and product selection?

Home

Get in touch

Industries
- Explore all industries
  
  Buildings
  Energy-efficient solutions for healthy indoor climates. Used across all building sectors worldwide.
  Retrofits AHU fans
  
  Industry
  Robust and efficient ventilation for demanding industrial environments. Designed to handle (contaminated) air, heat, fumes and dust safely.
  Process industries Agriculture Drying EC+ concept Mushrooms and greenhouses
  
  Data centres
  High-efficiency cooling that lowers energy use and ensures stable uptime. Built to reduce power consumption.
  Cooling
  
  Direct Air Capture
  High-efficiency axial fan systems for high airflow, low energy use and reliable operation needed to capture CO₂ efficiently at scale.
  
  Tunnels
  Jet-fan systems for safe airflow and reliable smoke control in road and rail tunnels. Engineered for reliable and efficient air movement.
  
  Car parks
  Jet-fan ventilation for safe airflow and effective smoke control in car parks. Built for efficient ventilation and smoke control in case of a fire.
  
  Smoke-free escape routes
  Smoke-control systems that keep escape routes clear from smoke and protect occupants from smoke during fires. Designed for reliability to prevent smoke spread.
  
  Direct Air Capture
  
  +80% energy efficiency engineered for Direct Air Capture
  Read more
  
  Buildings
  NOVENCO Building & Industry delivers energy-efficient ventilation solutions for all building categories. Our systems meet modern requirements for low energy use, reduced operating costs, and healthy indoor climates. NOVENCO installations are found worldwide across commercial, industrial, public, and residential sectors.
  
  Industry
  NOVENCO delivers durable, energy-efficient ventilation solutions that secure airflow, stable production and long-term performance across the most challenging industrial environments.
  
  Data centres
  Optimising cooling infrastructure reduces power consumption, minimises maintenance overhead, and extends server lifespan while protecting critical equipment.
  
  Direct Air Capture
  We deliver high-efficiency axial fan systems providing high airflow, low energy use and reliable operation needed to capture CO₂ efficiently at scale.
  
  Tunnels
  Our tunnel jet fans are manufactured in Denmark to the most stringent standards, earning recognition for their uncompromising quality and reliability at high temperatures. Featuring modern design and advanced technologies, our systems ensure high efficiencies, dependable operation, and low sound levels in demanding environments.
  
  Car parks
  Worldwide demand for parking facilities continues to grow, especially in major cities. As a result, more car parks are being built both above and below ground.
  
  Smoke-free escape routes
  High-rise buildings require robust life-safety systems to ensure safe evacuation in case of an emergency. Smoke is the leading cause of fatalities in building fires.
Products
- Explore
  
  Technologies
  
  Applications
  
  Requirements
  
  Accessories
  
  Search
  
  See all products
  
  ErP Directive
  
  Axial Flow fans
  High-efficiency and reliable fans designed for a wide range of land, marine and offshore ventilation systems.
  
  Jet fans
  Compact and reliable jet fans for systems requiring reliable ventilation under normal and high temperature conditions.
  
  Centrifugal fans
  Robust fans for industrial installations such as composting facilities, greenhouses and other demanding environments.
  
  Air heaters
  Efficient and economical solution for heating rooms and building.
  
  Next-generation fans
  
  World-class fans designed to cut energy use and carbon dd
  Discover all ZerAx fans
  
  Next-generation fans
  
  World-class fans designed to cut energy use and carbon dd
  Discover all ZerAx fans
  
  Next-generation fans
  
  World-class fans designed to cut energy use and carbon dd
  Discover all ZerAx fans
  
  Car park ventilation
  Ventilation and smoke control solutions for all sizes of parking facilities.
  
  Tunnel ventilation
  Reliable airflow and smoke control for road, metro and rail tunnels.
  
  Building ventilation
  Energy-efficient ventilation for commercial, residential, public and industrial buildings.
  
  Industrial ventilation
  Ventilation systems designed for demanding industrial processes and environments.
  
  Data centre ventilation
  Cooling solutions for modern data centres requiring high efficiency and consistent uptime.
  
  Pressure differential ventilation
  Advanced pressure differential systems that keep essential escape routes in buildings and tunnels clear of smoke.
  
  Next-generation fans
  
  World-class fans designed to cut energy use and carbon dd
  Discover all ZerAx fans
  
  Next-generation fans
  
  World-class fans designed to cut energy use and carbon dd
  Discover all ZerAx fans
  
  Next-generation fans
  
  World-class fans designed to cut energy use and carbon dd
  Discover all ZerAx fans
  
  Smoke Extraction
  For installation in buildings, car parks and road-, train- or metro tunnels.
  
  ATEX and Ex
  For safe operation in hazardous land-based, marine, and offshore environments.
  
  Next-generation fans
  
  World-class fans designed to cut energy use and carbon dd
  Discover all ZerAx fans
  
  Next-generation fans
  
  World-class fans designed to cut energy use and carbon dd
  Discover all ZerAx fans
  
  Next-generation fans
  
  World-class fans designed to cut energy use and carbon dd
  Discover all ZerAx fans
  
  Acoustic diffusers
  Acoustic diffusers for axial flow fans reduce noise and regain pressure simultaneously.
  
  Anti-vibration mountings
  Prevent vibration transfer from the fan unit to the building structure.
  
  Counter flanges
  Replicate the hole pattern of the fan flanges for secure mounting.
  
  Diffusers
  Recover static pressure and ensure uniform airflow in ducted installations.
  
  Duct spigots
  Mount directly to the fan flanges for quick duct connection.
  
  Flexible connections
  Create a flexible connection between fans and fixed or movable duct sections.
  
  Inlet cones
  Stabilise inlet airflow, improve fan performance, and reduce noise.
  
  Mounting plates
  For installation on walls, floors, or other flat surfaces.
  
  Silencers
  Reduce sound levels in comfort and industrial ventilation systems.
  
  Spark proof lining
  Prevents spark generation in ATEX/EX-certified fans.
  
  Support frames
  Provide structural support for heavy fan installations.
  
  Wire guards
  Protect against debris or accidental contact with rotating parts on free inlets of fans.
Services
- Service and Support
  Reliable after-sales support to keep your systems running at peak efficiency.
  
  Sales Support
  We provide reliable, high-quality support and services throughout your entire project.
  
  Fan retrofitting guide
  Use our video guide and templates to collect retrofit data quickly and accurately.
  
  Software AirBox™
  AirBox™ fan selection software. Download it or integrate it into your system.
  
  Parts
  Original spare parts for safe and efficient operation of fans, dampers and air components.
  
  Quick selector
  Submit your airflow and pressure data to find the right fan solution.
  
  Warranty
  Dependable warranty coverage across our product range for long-term performance.
  
  Sales Support
  
  Delivery of top-notch support and services is a top priority for us. We are committed to providing premium, consistent sales and customer service that creates value for our customers.
  Read more
  
  Service and Support
  Our service and support teams are there to help. Their know-how and experience build on NOVENCO's long history and ensure competent, professional guidance and support.
  
  Sales Support
  Delivery of top-notch support and services is a top priority for us. We are committed to providing premium, consistent sales and customer service that creates value for our customers.
  
  Fan retrofitting guide
  Provides video training, templates, and technical resources to streamline ventilation upgrade projects. It helps contractors collect accurate data, follow safe installation procedures, and reduce project time.
  
  Software AirBox™
  The AirBox™ program for Windows PCs is NOVENCO Building & Industry’s dedicated product configurator. It enables fast and accurate configuration and selection across the NOVENCO product range.
  
  Parts
  Original and approved spare parts from NOVENCO Building & Industry ensure that NOVENCO equipment and ventilation systems continue to operate safely and efficiently.
  
  Quick Selector
  The online Quick Selector allows for fast and easy calculation of fan solutions. Simply enter the requirements for airflow and pressure to get an instant list of efficient NOVENCO fans. Exact calculation, configuration and selection is done with NOVENCOⓇ AirBox™ for Windows PCs.
  
  Warranty
  Our customers rely on the quality and reliability of our products every day of the year. The warranty department reflects this, combining many years of company history and experienced employees to provide dedicated support that keeps customers' equipment running.
Inspiration
- Cases
  Real-world projects demonstrating proven performance and practical results with NOVENCO technologies.
  
  News
  Updates on new products, solutions and company developments.
  
  Sustainability
  Our commitment to sustainability throughout the product lifecycle - from design to end-of-life responsibility.
  LEED BREEAM DGNB
  
  Fairs
  Events where we present our technologies and meet customers, partners and industry peers.
  
  White Papers
  In-depth insights into ventilation technology, energy efficiency, life-safety and industry trends.
  
  Sustainability
  
  At NOVENCO Building & Industry, sustainability is not a trend — it is a commitment embedded in every aspect of our business. From our headquarters in Denmark, we design and manufacture ventilation systems that meet the highest global standards for energy efficiency, environmental responsibility, and long-term performance.
  Read more
  
  Cases
  
  NOVENCO® Building & Industry engineers and manufactures a broad range of high-performance ventilation products and systems. Our solutions draw on technical expertise and decades of experience delivering reliable, energy-efficient equipment for demanding applications.
  
  News
  
  Stay informed about our innovations and achievements in ventilation technology, sustainability initiatives, and industry certifications. Our solutions continue to improve building performance and lessen environmental strain.
  
  Sustainability
  At NOVENCO Building & Industry, sustainability is not a trend — it is a commitment embedded in every aspect of our business. From our headquarters in Denmark, we design and manufacture ventilation systems that meet the highest global standards for energy efficiency, environmental responsibility, and long-term performance.
  
  Fairs
  
  Experience NOVENCO ventilation technology first-hand. Touch, test and explore our products. Meet the engineers behind our innovations and discuss your challenges. Get direct technical support for your projects. Discover why leading contractors, consultants and facility managers choose NOVENCO as their ventilation partner.
  
  White Papers
  
  Deepen your understanding of modern ventilation technology. Access clear technical insights backed by engineering expertise and real-world performance data. Explore effective solutions to complex HVAC challenges and stay ahead of industry trends and regulatory requirements. Equip yourself with the knowledge trusted by leading contractors, consultants and facility managers.
About
- About NOVENCO
  Discover our history, values and expertise in high-efficiency and reliable ventilation solutions.
  History Mission and vision SCHAKO Group QHSE policy
  
  Certificates and Membership
  Explore our certifications and industry memberships documenting quality, safety and compliance.
  
  Career
  Build your career with NOVENCO and help develop sustainable and reliable ventilation systems worldwide. Explore open positions for diverse profiles.
  
  Patents and Trademarks
  See how NOVENCO patents and trademarks protect our innovations and brand worldwide.
  
  Offices
  Find NOVENCO offices and partners worldwide for local sales, service and support in your region.
  
  ErP Directive
  What the new Ecodesign requirements mean for fans, documentation and product selection?
  
  Offices
  
  Delivering top-tier support and service is central to NOVENCO® Building & Industry and one of our highest priorities. We aim to provide premium, consistent sales assistance and customer service that add real value for our clients.
  Read more
  
  About NOVENCO
  At NOVENCO® Building & Industry, we recognise the need to protect the ecosystem. Energy efficiency, sustainability and recycling are embedded in our products and business processes.
  
  Certificates and Memberships
  We design and manufacture products to the highest standards. Reliability, efficiency and durability are essential, because our ventilation solutions play vital roles in everyday safety and building performance worldwide.
  
  Career
  Discover how you can grow your career with us
  
  Patents and Trademarks
  Development of new products and manufacturing processes requires significant investment, and the protection of our trademarks and inventions forms an essential part of our long-term strategy.
  
  Offices
  Delivering top-tier support and service is central to NOVENCO® Building & Industry and one of our highest priorities. We aim to provide premium, consistent sales assistance and customer service that add real value for our clients.
  
  ErP Directive
  The new requirements are part of the EU Ecodesign framework for energy-related products that are designed to improve energy efficiency and to reduce the environmental impact of products throughout the lifetime of the products. For fan manufacturers, this means updated requirements for energy efficiency, product information and documentation.

CNA-CNB

The CNA-CNB series are low-pressure centrifugal flow fans for non-corrosive environments.

Their robust design allows universal installation in light industrial applications.

Product highlights

Above ErP compliance

NOVENCO fans surpass the EU Ecodesign (ErP) requirements and deliver higher efficiency with consistent performance. This results in lower power use, reduced operating costs, and a more sustainable choice for modern ventilation systems.
Flexible installation

Designed for any mounting position, the fans fit seamlessly into diverse light-industrial setups.
Durable construction

Housings and impellers are made of hot-dip galvanised sheet steel for long-term reliability.
Low sound performance

Backward-curved blades ensure efficient, quiet operation.

Product highlights

Above ErP compliance

NOVENCO fans surpass the EU Ecodesign (ErP) requirements and deliver higher efficiency with consistent performance. This results in lower power use, reduced operating costs, and a more sustainable choice for modern ventilation systems.

Flexible installation

Designed for any mounting position, the fans fit seamlessly into diverse light-industrial setups.

Durable construction

Housings and impellers are made of hot-dip galvanised sheet steel for long-term reliability.

Low sound performance

Backward-curved blades ensure efficient, quiet operation.

Product information

The CNA-CNB fans are designed for flange connection and offered in direct-coupled. They feature backward-curved blades for quiet and efficient performance, and both the housing and impeller are made of hot-dip galvanised sheet steel.

The fans can be mounted in any position and are supported by a wide range of accessories for mounting, connection, safety and regulation. They meet corrosion category C2 according to DS/EN ISO 12944-2, and can be configured with AirBox™.

Product data

Performance & pressure

CNA: 0.2–14 m³/s (720–50,400 m³/h)
CNB: 0.8–18 m³/s (2,880–64,800 m³/h)
CNA: up to 1000 Pa
CNB: up to 1500 Pa

Fan casing materials & corrosion categories

Hot-dip galvanised sheet steel
Corrosion category C2 (EN-ISO 12944-2:2017)

Accessories & variations

Accessories for mounting, connection, safety and regulation.
Available in direct-coupled versions.

Downloads

Catalogues

CNA-CNB EN

Manuals

Centrifugal fans CNA-CNB EN

Fan sizes

CNA: 9 sizes from 250 to 1000 mm
CNB: 7 sizes from 400 to 1000 mm

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