Chemical fume hoods
Bypass, restricted-bypass and VAV hoods in 1200–2400 mm widths, with airflow monitor and audible alarm as standard. Epoxy, phenolic or stainless liners and worktops.
Built in Canada
Our Products
Fume Hoods
Containment you can prove. Every hood we install is commissioned on site with a face-velocity traverse and alarm verification, and you receive the signed report.
Walk-in & floor-mounted hoods
Full-height walk-in hoods for large apparatus, distillation rigs and drum handling, with removable sash panels and floor-level airflow control.
Built in Canada
Microbiological hoods
Class II microbiological safety cabinets for work requiring both product and operator protection, certified at installation and re-certified annually.
Imported · Scientora-specified
Ceiling canopy hoods
Ceiling-mounted canopy and dome hoods in polypropylene and steel, for autoclaves, ovens, muffle furnaces and open sample preparation.
Imported · Scientora-specified
Two-joint articulated arms
50, 75 and 100 mm two-joint extraction arms for bench, wall or ceiling mounting, with adjustable hood, damper and friction joints that stay where you put them.
Imported · Scientora-specified
Three-joint articulated arms
Extended-reach three-joint arms for island benches and instruments that sit away from the wall — the configuration in most of our GC and sample-prep rooms.
Imported · Scientora-specified
Ductless filtered enclosures
Carbon and HEPA filtered enclosures for laboratories where ducting to roof is not possible, with saturation monitoring and a documented filter-change regime.
Imported · Scientora-specified
Vented storage & connections
Under-hood vented acid and solvent storage, exhaust connection collars, dampers, transitions and roof-fan coordination with your mechanical trade.
Built in Canada
Monitors, alarms & controls
Airflow monitors, low-flow alarms, sash position sensors and VAV controllers, commissioned and set to the design face velocity on site.
Imported · Scientora-specified
Specification
Fume hood specification at a glance
| Item | Range / options | Notes |
|---|---|---|
| Nominal width | 1200 / 1500 / 1800 / 2100 / 2400 mm | Wider and walk-in configurations to order |
| Design face velocity | 0.50 m/s (100 fpm) at the design sash opening | Confirmed on site by traverse, not assumed from the catalogue |
| Design sash opening | 457 mm operating height, vertical rising sash | Combination and horizontal sashes available |
| Containment target | ASHRAE 110 as-installed rating AI 0.05 ppm | Test performed after the exhaust system is balanced |
| Liner | Epoxy resin · phenolic resin · 304 stainless · polypropylene | Chosen from the reagents actually used in the hood |
| Body | 1.5 mm cold-rolled steel, chemical-resistant epoxy powder coat | Non-corroding fasteners throughout |
| Services | Water, gas, vacuum, air and nitrogen; remote-operated valves | Valves outside the containment envelope |
| Monitoring | Digital airflow monitor with audible and visual low-flow alarm | Alarm setpoint recorded in the commissioning report |
Why the as-installed test matters
A hood that passes at the factory can still fail in your room. Face velocity depends on the fan, the ductwork, the make-up air, the position of the door and the traffic past the sash. That is why our hoods are commissioned in place — measured, balanced and tested where they will actually be used — and why the report you receive says as installed, not as manufactured.
Replacing a hood in a working laboratory
Most hood work we do is a replacement, not a new build. We phase it: survey and shop drawings first, then a shutdown window agreed with your operations team, containment and dust control during removal, and the new unit commissioned before the room comes back into service. See Lab Renovation for how that runs.
Common questions
Fume Hoods — questions we are asked most
How do I know what face velocity my fume hood needs?
For most general chemistry in Canada the target is 0.5 m/s (100 fpm) at an 18-inch sash opening, verified by a face-velocity traverse. Perchloric acid, radioisotope and high-hazard work carry their own requirements. We measure and certify the as-installed condition rather than quoting the catalogue figure.
What is ASHRAE 110 testing and do I need it?
ASHRAE 110 is the standard containment test for a fume hood: face-velocity traverse, smoke visualization and a tracer gas challenge with a mannequin at the sash. It is the only objective proof that a hood contains. We commission every hood we install to ASHRAE 110 as installed, and we also test hoods we did not supply.
Can you replace a fume hood without shutting the laboratory down?
In most cases yes. We isolate the affected bay, build temporary containment, do the removal and install out of hours or over a weekend, and re-balance the exhaust so the remaining hoods keep their face velocity while the work runs. See Lab Renovation for how the phasing works.
What is the difference between a bypass and a low-flow fume hood?
A bypass hood keeps exhaust volume roughly constant as the sash closes, which is simple and robust but moves a lot of conditioned air. A low-flow or high-performance hood contains at a lower face velocity and cuts exhaust volume substantially, which lowers the make-up air load and the operating cost. On a multi-hood room the energy difference usually decides it.
Do ductless enclosures count as fume hoods?
Not for most regulated work. A filtered ductless enclosure is appropriate for defined, low-volume chemistry where the filter media is matched to the compound and changed on a schedule. It is not a substitute for a ducted hood in general chemistry. We will tell you which one your work actually needs.
Request a quote
Send us the drawings. We'll send back a layout and a number.
Attach a floor plan, an equipment list, a mechanical drawing — or even a phone photo of the room as it stands today. Within five business days you'll have a marked-up layout and a budget price. No charge, no obligation.