Ducted vs Ductless Fume Cupboards

Ducted vs Ductless Fume Cupboards
Fume Hood Or Fume Cupboard

Choosing the Right Fume Cupboard in the UK

In UK laboratories, Fume Cupboards UK play a vital role in protecting staff from hazardous substances. Whether you are setting up a new laboratory or upgrading an existing workspace, one of the most common questions is: should you choose a ducted or a ductless fume cupboard?

This guide explains the differences, benefits, and limitations of both systems so you can make an informed decision — and comply with HSE COSHH Regulations and HSG258 guidance.


What Is a Ducted Fume Cupboard?

A ducted fume cupboard extracts hazardous fumes, vapours, and particulates through a duct system, then discharges them safely outside the building.

Advantages of ducted fume cupboards:

Limitations: You’ll face higher installation costs due to ductwork and fans, and moving the unit later is less practical.


What Is a Ductless Fume Cupboard?

A ductless fume cupboard uses advanced filters — such as activated carbon and HEPA — to capture contaminants and then return clean air to the laboratory.

Advantages of ductless fume cupboards:

  • Install quickly without external ductwork

  • Provide mobility and flexibility

  • Reduce upfront installation costs

Limitations: Filters require regular replacement, which increases long-term costs. They may also fail to handle certain chemicals.


Ducted vs Ductless Fume Cupboards in UK Laboratories

When deciding between ducted and ductless fume cupboards in the UK, consider:

  • Compliance — ducted systems suit high-risk applications.

  • Flexibility — ductless cupboards allow easier relocation.

  • Cost efficiency — ducted systems involve higher initial spend, while ductless systems create ongoing filter expenses.

  • Energy use — ducted systems increase HVAC load, while ductless systems recycle air.


Which Fume Cupboard Is Best for Your Laboratory?

Your choice between ducted and ductless fume cupboards UK depends on your lab’s processes, budget, and compliance requirements. Choose ducted for hazardous work, and ductless for flexibility in educational or R&D settings.

Confirm your decision through a COSHH risk assessment and align it with

HSG258: Controlling Airborne Contaminants.


Final Thoughts

Both ducted and ductless Fume Cupboards UK protect laboratory staff, maintain compliance, and ensure safe working environments. By weighing up the pros and cons, you can select the right system for your team and processes.

For technical guidance or installation support, contact. The Fume Cupboard Company Ltd.