When it comes to industrial activities, there are plenty of operations that result in dust, fume or simply unbreathable air. For this reason, various companies and manufacturers have had to find a healthy alternative for their employees, such as change of processes, replacement of practices, substitution of certain toxic solutions used or even elimination of toxic chemicals. However, these options are not applicable in any industry and as a consequence; ventilation has become a process mandatory in most manufacturing plants. This method is necessary for controlling workers’ exposure to harmful air, which may contain toxic chemicals or flammable vapors, thus protecting their health and even life. Basically, a special ventilation system is used to eliminate contaminated air, by taking it away from the working area, filtering and replacing it with clear air. This way, people who need to spend time inside the processing rooms are no longer exposed to contaminants in the workplace. There are several types of ventilation systems, and LEV seems to be the most efficient and popular one.
Also knwn as LEVs, local ventilation systems are the most efficient method since they can handle even the highest levels of toxicity. Generally, these are used in industrial sites where the manufacturing workers are exposed to extremely dangerous agents or chemicals, welding fumes and great amounts of dust. The main principle of ventilation is based on air movement and filtration: the toxic could is absorbed by a hood, whose dimension may vary depending on the amplitude of the operation, and then transported to a special filter where the air is cleaned by a fan, eliminated and then replaced with clean one. If this process is unfamiliar to you, just think about how a household vacuum works, because the principle is basically the same.
Taking into consideration that LEV systems are quite complex, their maintenance, design, testing and troubleshooting has to be performed by a specialised ventilation company, such as www.levtesting.co.uk. However, some basic pieces of information about LEV will help you not only choose the most suitable product, depending on your needs, but also be able to perform some important troubleshooting operations, if necessary.
Although a LEV system may seem complicated at first glance, it is actually quite simple. It is made up of many distinct elements, which work together to capture contaminated air and then replace. The five components of such a system are: the hood (an opening that covers the source and gathers contamination air), ducts (for air transportation through the system), the cleaning device (a filter that eliminates contaminants from the duct), a fan (used for moving clean air and discharging it outside the filter) and an exhaust stack (to discharge dust and fume). All these ensure the proper functionality of the LEV system and could not be efficient one without the others. That is why you need to make sure each of them is in good condition through regular maintenance.