Fume Hoods

Fume hoods, standard in any chemical laboratory, enable researchers, workers, and students to safely work with hazardous and volatile materials. The concept of the fume hood is simple — to ventilate dust, debris, fumes, and other contaminants away from users and out of the laboratory. But while the concept is simple, the number of different types of fume hoods available can complicate choices.

The health and safety of laboratory users is one of your main concerns when choosing fume hoods. In order to ensure that contaminants in the operator’s breathing area remains at a safe threshold, the right types of hoods must be chosen for the intended application. In addition, hoods must be properly installed and regularly maintained to ensure they are properly working and satisfying ventilation requirements.

Walk-In Fume Hoods

If your laboratory requires fume hoods that house large equipment, walk-in fume hoods are an excellent option. While the name might indicate otherwise, walk-in fume hoods do not allow users to walk in and out of the fume hood while it is being used. Walk-in fume hoods, which are basically bench hoods that reach the floor, do allow users to walk in and out to set up equipment before and after work begins.

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Air Foil Fume Hoods

Air foil fume hoods are a type of fume hood with an aerodynamic entrance shape. Instead of having square faces, air foil fume hoods have a gentle slope on the bottom front air foil that reduces turbulent air patterns and increases laboratory safety.

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Double-Sided Fume Hoods

Like traditional fume hoods, a demonstration fume hood is a ventilated enclosure designed to protect its user from chemicals, dust, vapors, and other contaminants. However, there is one major distinction between typical fume hoods and demonstration fume hoods. Instead of being enclosed on three sides with opaque material, they are enclosed by transparent safety glass.

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Perchloric Acid Fume Hoods

Perchloric acid is a chemical subject to violent explosions. Perchloric acid fume hoods, and their exhaust systems, are designed to allow safe use of this chemical by meeting five criteria. They must not react to percholoric acid, be watertight, explosion proof, have a dedicated duct and blower system and be single use.

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Radioisotope Fume Hoods

Radioisotope fume hoods are designed with two very specific considerations in mind. First of all, they must be constructed so that even minute portions of radioactive material can be easily cleaned from the surface. Second, they must be strong enough to hold the heavy lead bricks that are used to shield radioactive material during work.

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