Fume Hoods
Fume hoods from Keur Industries, Inc. are workspaces that exhaust to the outside and are partially enclosed. Chemical fume hoods consist of two parts, a sash and the hood. The sash on a laboratory hood is a front panel, which can be opened and closed to decrease airflow and increase access. Laboratory fume hoods are an affective way to control exposure to offensive, toxic or flammable vapors, aerosols and gases. Chemical hoods are also used as a cover between the materials and the worker when the possibility of an explosive reaction is present. Corrosive, volatile, or obnoxious substances should always be isolated in a chemical fume hood area.
There are two primary considerations when selecting laboratory fume hoods:
- The safety of the operator
- The work load requirements
When choosing from the fume hood designs offered by us, the unit best suited to your application must meet the following conditions –
Air Control
Air should enter the front periphery in a smooth, even flow. All chemical hood styles have flush side walls that allow the air to move through the chamber with the least amount of resistance. This eliminates tendencies toward eddy currents and dead spaces that could cause improper test readings and hazards to the operator. Standard baffle operation should provide adjustment in upper and lower areas of the hood allowing control of both heavier-than-air and lighter-than-air gases.
Capacities
Through conclusive studies, we now recommend a minimum of one hundred (100) lineal feet per minute for normal air flow capacity operation. When planning your air removal requirements, consideration should be given to the static pressure in both the fume hood chamber and the ductwork system. We recommend mounting the blower at the roof level thereby creating a negative pressure throughout the entire exhaust system.
Safety Feature
The most important considerations for operator safety are:- Glass safety shield with simply operation
- Bright interior with illumination throughout the hood
- Proper air volume
- Proper air control
All our laboratory hoods meet these considerations. The stunning feather touch balance of the sash, in addition to the optional horizontal-vertical operating sash, are exceptional examples of Heritage® fume hoods, designed and manufactured by Keur Industries, Inc.
Work Surface And Interiors
Most chemical laboratories require an epoxy top and an acid/corrosive resistant composite interior liner. When working with radioisotopes or percholic acids, stainless steel interior liners are preferable because of non-absorption and wash-down features.
We invite you to peruse our laboratory fume hood catalog. We offer many different styles of chemical fume hoods, and there is a fume hood design available for every application. In addition, all fume hoods can be customized with just the equipment that you need, i.e., various service valves, electrical outlets, sinks and cup sinks, etc. Let us build your next fume hood, just the way you need it and want it.