LEV Systems: Your Most Commonly Asked Questions, Answered
Often found in factories, workshops and processing plants, a Local Exhaust Ventilation (LEV) system is an engineering method proven to provide a cleaner and safer working environment for those exposed to harmful contaminants in the workplace.
But how does a LEV System work? How does it protect us? And why is it important? Here we answer your most commonly asked LEV System questions.
What is a LEV System?
What contaminants does a LEV system remove from the workplace?
How does a LEV system work?
A LEV system is made up of several elements that work together to extract the air and capture the contaminants at source and then move it away to a safe place. Typically, a LEV System will be situated close to the source (such as a welding machine) and placed at ceiling height.
The main elements of a LEV system are:
- A Hood– This is where the contaminants enter the system along with the extracted a
- Ducting– This part of the LEV system safely transports the pollutants to either a filter, a cleaner or an exhaust point.
- Air cleaner, filter, or scrubber – This removes the pollutants from the extracted air.
- Air mover– This is a fan which powers the entire LEV system.
- Discharge– This is the safe point for the contaminants to exit (usually outside the building).
Why is having a LEV System in place important?
It protects employees’ health
According to HSE, it is estimated that in 2018, 12,000 lung disease deaths were linked to past exposures in the workplace.
A LEV system is designed to protect the health of employees by removing the airborne contaminants and preventing harmful exposure to them.
Protecting your employees is required by law
Although it is not required by law to have a LEV system in place, the law does require employers to take specific measures to protect their employees from harm in the workplace.
Specific legislation such as the Health and Safety at Work Act and COSHH requires employers to protect their employees if exposed to harmful contaminants. In many cases, where other measures have failed, a LEV system is often the solution.
Does a LEV System need regular testing?
Yes. If you have a LEV System in place, you are required by law to have it tested by an engineer once every 14 months.
Want to know more?
Do you think you need a LEV system and want to discuss your requirements with us? Have a LEV system in place that you need testing? Call us today and speak to one of our fully qualified engineers who will talk you through the entire process.