Waldner Secuflow laboratory fume cupboards

Significance of the topic

Modern laboratories rely on fume cupboards to protect users from harmful emissions and to maintain safe and sustainable workflows. Innovations in flow engineering and energy efficiency can reduce operational costs and environmental impact while raising containment performance. Fume cupboards optimized for diverse applications—high thermal loads, dusty materials or sites with limited ventilation—address evolving needs in research, quality control and industrial analytics.

Study objectives and overview

The article presents the Secuflow range of fume cupboards by Waldner, highlighting its advanced supportive flow technology, enhanced ergonomics, lower energy demands and specialized models. It outlines technical innovations, compliance with EN 14175 and ASHRAE 110, and comparative performance data demonstrating improved safety and efficiency.

Methodology and instrumentation

The Secuflow family was evaluated through extensive aerodynamic tests, tracer gas containment trials (per EN 14175-3), robustness assessments with sash open up to 900 mm and thermal load testing following EN 14175-7. Airflow patterns were mapped in cross sections to optimize duct design, sill profiles and supportive air inlets. Specialized units include:

• Secuflow EN7 with temperature-monitored airflow and heat-resistant materials for up to 4 kW/m internal width.
• Secuflow IONIC featuring ionization electrodes integrated in worktop and side posts to neutralize static and reduce dust adhesion in SMEPAC testing.
• Secuflow GFH (Green Fume Hood) with Neutrodine® molecular filter system, HEPA H14 option and modular detection sensors for recirculating air mode.

Key results and discussion

Secuflow achieves containment targets with a 33 % lower extract air volume (270 m3/h per linear metre) than conventional designs (400 m3/h). It meets stricter EN 14175 robustness criteria at sash openings up to 900 mm. Thermal load variants maintained safe airflow under 700–900 m3/h with alarms triggered at predefined temperature thresholds. The IONIC model showed reduced particle resuspension. The GFH recirculation mode passed tracer gas tests for solvents, acids and bases while monitoring filter saturation and room air quality.

Benefits and practical applications

• Energy savings and reduced ventilation system sizing by one-third.
• Improved user safety under turbulent or high-movement conditions due to stable supportive flow.
• Flexibility for laboratories lacking central exhaust or with space constraints using recirculating GFH.
• Specialized models for high-temperature digestion, dusty powders and closed-loop operation extend application range.
• Ergonomic features include inclined control panels, one-hand sash locking and increased internal height and width.

Future trends and potential applications

Growing demand for sustainable lab design will drive adoption of low-volume fume cupboards with integrated energy recovery and recirculation. Enhanced sensor networks and IoT connectivity can enable real-time airflow and filter monitoring. Future R&D may explore adaptive flow control, predictive maintenance algorithms and greener filter media.

Conclusion

The Secuflow fume cupboard series sets a new benchmark by combining aerodynamic innovation, regulatory compliance and specialized configurations. By delivering high containment with lower energy demands, it supports safer, more economical and adaptable laboratory operations across diverse sectors.

References

No external references provided in the source material.