Nanoclass FFU: High purity air filtration solutions for cleanrooms
Creating a controlled, ultra-clean environment is a key challenge for many industries – ranging from microelectronics to pharmaceuticals. When precision and air purity are critical, choosing the right filtration technology is essential. The Nanoclass FFU series offers an all-in-one solution for cleanrooms – seamlessly integrating housing, HEPA/ULPA filters, a fan, and a control interface into a single, modular unit. Specially designed for industries such as microelectronics, biotechnology, pharmaceuticals, or food & beverage, and developed in collaboration with the global cleanroom community, these filter fan units ensure ISO 14644-1 compliance. Trusted worldwide for their reliability, performance, energy efficiency, and easy maintenance, Nanoclass FFUs are the smart, flexible choice for cleanrooms requiring scalable and efficient air filtration. Leading the market in energy efficiency and noise reduction, the Nanoclass FFU Eco delivers up to 20% energy savings while maintaining best-in-class quiet operation.
Nanoclass FFU: Your all-in-one cleanroom solution by MANN+HUMMEL
At MANN+HUMMEL, we understand that every cleanroom is unique. That’s why our filter fan units are engineered to support layout flexibility and full compliance with international standards:
- ISO 14644-1 compliance: Achieve and maintain the required air cleanliness class for your processes
- Zoning flexibility: Individual or grouped controls allow for different ISO classes within a single facility, enabling operational agility
- GMP compatibility: Perfect for pharmaceutical production across Class A right through to D environments
In addition, the Nanoclass FFU Eco, one of our four models, sets new benchmarks as the market leader in energy efficiency and noise emissions. With up to 20% reduction in energy consumption and CO₂ footprint compared to competing products, plus best-in-class noise levels, our FFUs don't just meet cleanroom requirements – they redefine what's possible in sustainable, quiet air filtration technology.
Applications: Versatile cleanroom filtration solutions for every industry
Our Nanoclass FFUs are trusted across a wide range of industries including microelectronics, pharmaceuticals & biotechnology, food & beverage, optronics, aerospace, and automotive where air purity is vital, as they:
- protect sensitive processes from airborne molecular contamination (AMC)
- maintain ISO 14644-1 Classes 1-8 and GMP A-D environments
- prevent harmful microbial growth and contamination in packaging and processing zones
- ensure consistent product quality and process reliability in high-precision manufacturing
From microchip fabrication to sterile drug production, our filter fan units deliver the clean air your process demands. Designed with best-in-class energy efficiency, ultra-low noise emissions, and modular flexibility, the Nanoclass series meets the evolving needs of agile production lines.
From microchip fabrication to sterile drug production, our filter fan units deliver the clean air your process demands. Designed with best-in-class energy efficiency, ultra-low noise emissions, and modular flexibility, the Nanoclass series meets the evolving needs of agile production lines.
Made from 1.5 mm thick untreated aluminum. Other thicknesses and materials—such as stainless steel and powder coatings (e.g. RAL9010)—are also available.
Proven, energy-efficient drives that are made in Germany and use modern, backward-curved EC centrifugal fans.
System control is via MODBUS-RTU interface and 0–10 V analog input, or MODBUS-RTU units with DCI (daisy chain interface) function for auto-addressing.
Available with various coarse and fine dust prefilters, and/or high performance molecular filters.
For easy handling, each unit has two or four handles on top, depending on the size of the housing.
Compatible with most common ceiling systems and integrate seamlessly into cleanroom machines or systems.
Available in the six common grid sizes 0606, 0609, 0612, 0909, 0912 and 1212.
Equipped with high quality HEPA or ULPA filters in classes H14 – U17 (to EN 1822), which can be changed change from above or below.
Optimized air flow and integrated sound absorbers ensure low noise emissions at all operating points.
Why choose Nanoclass FFU? Key benefits and USPs
- Comprehensive solution: Combines housing, filter, fan, and control interfaces into a single modular unit
- Market-leading energy efficiency: Reduces energy consumption and CO₂ footprint by up to 20% compared to similar products
- Ultra-quiet operation: Best-in-class noise emissions for comfortable working environments
- Quick, easy installation: Lightweight, prefabricated design fully compatible with standard ceiling grids
- Leak-free filtration: Factory-tested HEPA H14 to ULPA U17 filters (EN 1822) with optional ePTFE media for reduced pressure drop
- Customisable filtration: Coarse, fine, or molecular prefilters paired with optimised EC centrifugal fans and low-pressure-drop filters
- Durable construction: Robust 1.5 mm aluminium as standard, with stainless steel and powder-coated options also available
- Smart controls: MODBUS-RTU, analogue (0-10V), and daisy-chain (DCI) interfaces for seamless integration with facility management systems
Our product range: Tailored FFUs for every requirement
The Nanoclass FFU family includes four models and each filter fan unit is designed to meet specific operational and budgetary requirements:
Here is how they compare
Whether you prioritise budget, energy savings, or ease of maintenance, there’s always a Nanoclass FFU model to match your requirements.
Technical highlights: Built to perform, made to last
Every single Nanoclass FFU is engineered for reliability and efficiency, setting new standards in cleanroom filtration.
- HEPA/ULPA filters: Classes H14 to U17 (EN 1822), factory leak-tested to guarantee performance
- Filter media options: Microglass media (standard) or ePTFE (optional) for ultra-low pressure drop
- Primary filter options: Knife-edge (KE) for plenum-side change or gel-seal (TC) for room-side replacement
- Advanced control systems: The ACF300 controller manages up to 250 FFUs with remote monitoring and BMS integration via Modbus TCP
- Noise management: Integrated sound absorbers ensure quiet operation – even in group installations
- Room-side filter change (RSC): Speedy, contamination-free maintenance
Whisper-quiet performance
A quiet hum can quickly turn into an annoying drone— particularly in working spaces. All Nanoclass FFUs feature an extremely low sound output for unobtrusive performance.
An commonly-held belief is, that filter fan units can be noisy which makes them unsuitable for use in groups or anywhere except small applications.
Indeed, some FFUs can be noisy. But Nanoclass FFU offers the quietest performance on the market.
So much so, that several of our filter fan units can even be used in combination in sound sensitive areas.
- Nanoclass FFU Eco: 39.5 dB(A)*
- Nanoclass FFU Select: 44 dB(A)*
*Grid size 0612, ePM10 50% and HEPA H14, 0.45 m/s at 1.5 m
Prefilters: Fully customisable to your specific needs
All filter fan units are available with a range of prefilter options, designed to handle cleanroom environments with zero-shedding filter media. Options include:
- Airpanel Select FZL: Coarse 70%
- Airpanel Eco S: Fine dust, ePM10 50%
- Carboactiv Panel: Molecular filter for AMC
Smart monitoring with centrally managed control units
The Nanoclass FFU cleanroom air filtration system can be centrally managed using dedicated control units, suitable for installations ranging from a single unit to thousands:
ACF300 Central Control Unit:
- Manages up to 250 FFUs, organised into eight groups
- Allows remote control via PC or mobile phone
- Integrates with building management systems (BMS) via Modbus TCP
ACC8 Control Panel:
- Manages up to 10,000 FFUs
- Displays customised graphics for each application
- Controls and monitors FFUs, sensors, actuators, and remote (room) displays
- Supports four hierarchical control levels: facility, rooms/groups, workgroups, and individual nodes
Maintenance and serviceability: FFUs designed to maximise uptime
Maximising process reliability while minimising downtime is our top priority. At MANN+HUMMEL, serviceability is always built in, ensuring your cleanroom stays operational and compliant with minimal disruption.
- Room-side filter change: Less contamination risks, no plenum access required
- Robust construction: Corrosion-resistant frames ensure long-lasting durability
- Global support: Fully supported by our worldwide network of over 80 locations
MANN+HUMMEL: Over 80 years of leadership in filtration
ince 1941, MANN+HUMMEL has been a global leader in filtration solutions. With a dedicated team of over 22,000 experts worldwide, we don’t just deliver innovative products – we provide a trusted partnership in cleanroom filtration excellence. For more than 60 years, our air filtration solutions have protected people, processes, and the environment, ensuring compliance and safety – in even the most demanding environments.
Optimise your cleanroom performance with MANN+HUMMEL’s expertise.
Contact us
At MANN+HUMMEL, we’re here to support your air filtration needs! Whether you have questions about our products or need tailored solutions, our expert team is ready to assist you. Reach out to us via email, telephone or contact form to discuss your requirements, and let’s work together to enhance your air quality. Contact us today and experience exceptional service tailored to your business!