How to Choose the Right Erlab Ductless Fume Hood for Your Laboratory

Selecting the right fume hood is an important decision for any laboratory that regularly handles chemicals, vapours, or particulates. The right system should suit the substances being used, provide enough working space, support the required filtration, and fit naturally into the laboratory’s existing setup. For facilities considering Erlab ductless fume hoods, the selection process should begin with the application rather than the product size alone. Erlab’s Captair range includes different hood sizes, filtration configurations, and monitoring features, allowing laboratories to choose a setup that reflects their specific working requirements. Taking the time to assess these factors can help ensure the selected hood is practical for both current and ongoing laboratory work.

Start With the Chemicals and Applications

The chemicals used in the laboratory should be one of the first considerations when choosing a ductless fume hood. Unlike a traditional ducted system that sends contaminated air outside the building, a ductless hood captures contaminants through filters before returning filtered air to the room.

This makes chemical compatibility particularly important. The hood and filtration system need to be appropriate for the substances being handled, their concentration, the quantities used, and the frequency of the procedures.

Erlab recommends evaluating applications before selecting a filtration configuration. Its Captair ductless fume hoods are designed for defined laboratory processes, but suitability still depends on the chemicals and working conditions involved. Laboratories should therefore have a clear understanding of their chemical inventory and procedures before deciding on a particular model.

Choose the Right Filtration System

Filtration is at the centre of any ductless fume hood, and different laboratory applications may require different filter types.

Erlab offers activated carbon filters designed for specific groups of chemical vapours. These include filters intended for organic vapours, acids, formaldehyde, and ammonia. HEPA filtration is also available for procedures that generate powders or airborne particulates.

Some applications may require a combination of filtration technologies. For example, a process that produces both chemical vapours and particulates may need a configuration designed to manage both types of contaminants.

This is why the filter should never be treated as a secondary purchasing decision. When comparing Erlab ductless fume hoods, laboratories should consider the hood and its required filtration as a complete system.

GLE Sales carries Erlab Captair hoods alongside compatible carbon and HEPA replacement filters, making it possible to review the hood and supporting filtration options together.

Select the Appropriate Hood Size

The physical dimensions of the hood should reflect both the laboratory space and the work being performed inside it.

Erlab’s Captair range includes models of different widths and depths. A compact model may work well for smaller-scale procedures or laboratories where bench space is limited, while larger units can provide additional working room for equipment, containers, or more involved procedures.

Before selecting a hood, consider the dimensions of any equipment that will be placed inside the enclosure. There should be sufficient space to perform routine tasks comfortably without overcrowding the working area.

External dimensions also matter. The laboratory needs enough bench or floor space for the hood itself, as well as appropriate clearance for normal operation, maintenance, and filter replacement.

GLE Sales offers several Erlab Captair products and compatible accessories, including work surfaces and cart options for certain models, giving laboratories additional flexibility when planning their layout.

Choosing the Best Fit for Your Laboratory

The right fume hood should match the way the laboratory actually works. Chemical compatibility, filtration type, hood dimensions, monitoring features, installation requirements, and ongoing filter maintenance should all be considered before a model is selected. For laboratories exploring Erlab ductless fume hoods, GLE Sales provides access to Captair models as well as compatible filters, work surfaces, monitoring products, and selected accessories. Reviewing these components together can make it easier to choose a system that fits the laboratory’s space, processes, and filtration needs while keeping future maintenance in mind.