Non-ducted Fume Cupboards

Non-ducted fume cupboards provide effective operator protection by filtering hazardous fumes and vapours through high-efficiency filtration systems before clean air is safely recirculated back into the laboratory.

Devices included:

• Circulaire® Pro Recirculating Fume Cupboard
• Circulaire® Recirculating Fume Cupboard
• Circulaire® Hybrid Fume Cupboard
• Circulaire® ATEX Rated Fume Cupboard
• Mobile Recirculating Fume Cupboard

1. Circulaire® Pro Recirculating Fume Cupboard

Technical information

• Face velocity: 0.55 m/s (automatically maintained)
• Airflow:
  • 300 m³/h (CT800)
  • 475 m³/h (CT1100)
  • 650 m³/h (CT1400)
  • 890 m³/h (CT1800)
• Primary filter: Large capacity activated carbon or HEPA
• Power consumption: 57–160 W (model dependent)
• Sound level: approx. 48–55 dB(A)
• Control: Touchscreen interface with airflow safety monitoring
• Compliance: BS 7989:2001

The Circulaire® Pro Recirculating Fume Cupboard is an advanced ductless solution designed for laboratories requiring flexible installation without compromising safety. Featuring automatic airflow compensation, ultra-deep carbon filters and a touchscreen control interface, it delivers reliable containment and continuous performance monitoring across a wide range of applications.

2. Circulaire® Recirculating Fume Cupboard

Technical information

• Face velocity: 0.55 m/s (automatically maintained)
• Airflow:
  • 375 m³/h (C650)
  • 504 m³/h (C900)
• Primary filter: Large capacity activated carbon or HEPA
• Power consumption: 92–97 W
• Sound level: approx. 58–62 dB(A)
• Monitoring: Real-time airflow display

This recirculating fume cupboard provides efficient ductless containment with continuous airflow monitoring via an integrated display. It is designed for laboratories where ducted extraction is not feasible and offers a compact, energy-efficient solution for routine fume handling tasks.

3. Circulaire® Hybrid Fume Cupboard

Technical information

• Total airflow: 389–578 m³/h
• Recirculated airflow: approx. 60%
• Exhausted airflow: approx. 40%
• Filter system: Activated carbon, H14 HEPA or carbon/HEPA combination
• Power consumption: up to 1.8 kW
• Sound level: approx. 55–56 dB(A)
• Control: Touchscreen interface with auto airflow compensation

The Circulaire® Hybrid Fume Cupboard combines recirculating filtration with partial ducted exhaust to significantly reduce the loss of conditioned air. By recirculating approximately 60% of filtered air and exhausting only 40%, it offers an environmentally sustainable alternative to fully ducted systems while maintaining high containment performance.

4. Circulaire® ATEX Rated Fume Cupboard

Technical information

• Face velocity: 0.55 m/s (automatically maintained)
• Primary filter: Large capacity activated carbon
• Power consumption: 750–1200 W
• Sound level: approx. 57–59 dB(A)
• ATEX rating: Zone 1, T4 certified
• Components: Fully ATEX-rated electrical and airflow components

The Circulaire® ATEX Rated Fume Cupboard is engineered for environments handling volatile or explosive substances. All critical components are ATEX certified to eliminate ignition risks, providing safe recirculating containment for hazardous applications where standard ductless systems are not suitable.

5. Mobile Recirculating Fume Cupboard

Technical information

• Face velocity: 0.4 m/s (automatically maintained)
• Primary filter: Large capacity activated carbon
• Power consumption: 400 W
• Sound level: approx. 52 dB(A)
• Mobility: Castors for easy relocation
• Compliance: BS 7989:2001

The Mobile Recirculating Fume Cupboard is a portable containment solution designed primarily for educational and training environments. Its 360-degree visibility, compact footprint and ductless operation make it ideal for flexible use where fixed installation is not required.