Free Fume Cupboard Tools
Duct Velocity Calculator
Is my ductwork the right size?
Enter an air volume, or the sash dimensions and a face velocity, and get the duct velocity and friction loss for round or rectangular duct.
- Works from air volume or sash size
- Round and rectangular duct
- Flags velocities outside the usual range
Extraction Volume Calculator
How much extract do I need in total?
Add every fume cupboard on the system, assign them to fans, and see the volume each fan has to move. Includes the saving from VAV and autosash.
- Multiple cupboards across multiple fans
- VAV and autosash energy comparison
- Totals per fan and for the system
Integrated Lab Designer
Will it all actually fit in the room?
Draw your walls and rooms to scale in the browser, then place fume cupboards and benching against real dimensions and export the plan.
- Draw to scale, in 2D
- Real fume cupboard and bench footprints
- Export to PDF, DXF or PNG
Which one do I need?
If you are laying out a room, start with the Lab Designer and get the footprints right before anything else. Once you know how many cupboards you have and where they go, the Extraction Volume Calculator gives you the volume each fan has to move, and the Duct Velocity Calculator sizes the duct to carry it.
The tools give you the numbers, not a specification. If you want the figures checked against BS EN 14175 and CLEAPSS G9 before they go into a tender, send them over and we will go through them with you.