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Clearing the Air with LEVs: 5 Top Tips to Improve the Air Quality Local Exhaust Ventilation.

Local Exhaust Ventilation, better known as LEV, is an engineering control designed to reduce employee exposure and background concentrations of airborne contaminants. For things such as dust, mist, fume, vapour, gas and everything in between. Local Exhaust Ventilations work by capturing the contaminant at source, removing it from the working and breathing zones. Then transporting it to a safe exhaust point, or through a filter unit to remove the contaminant from the air. A well designed and correctly used LEV system will improve the Air Quality within the workplace. It can also help to provide a healthier and more productive work environment.

As society places increasing emphasis on environmental well-being, the role of LEV systems becomes paramount. In the upcoming sections, we’ll explore the intricacies of LEV systems. These systems are customarily engineered for specific processes or tasks, and we’ll shed light on their design principles. Our guide aims not only to provide valuable insights into the theoretical aspects but also to offer practical strategies that can be to effectively control contaminants and maintain optimal performance.

Join us as we navigate through the significance of proper LEV systems and its direct impact to Air Quality improvement. Choosing the right equipment. Implementing proactive maintenance practices. Our tips aim to empower you with the knowledge for a healthier and safer environment.

Our Occupational Consultant testing an LEV System

Here are top tips on how to use LEV properly:

  1. Complete a Risk Assessment: Undertake a full risk assessment of the process. By using the information from the COSHH Regulations and the Hierarchy of Control.
  2. Select the right LEV: Once the risk assessment has been complete, if there is still a requirement to control any airborne contaminants, an appropriate LEV system can benefit to control the contaminant at source. Local Exhaust Ventilation systems come in all shapes and sizes, therefore an examination of the correct hood type, as well as appropriate filtration media is mandatory.
  3. Installation of LEV: Install the Local Exhaust Ventilation system correctly and in the right location. Place the hood near the contaminant source for optimal effectiveness. Ensure the effective capture distances cover the entire working zone. The positioning of the fan and filter units as well as any exhaust points for the system should be correct.
  4. Correct use of the LEV: It is important that LEV systems are correctly placed and as originally intended. Operators must undergo training to ensure they use the system correctly. They should also learn how to position the hood effectively to contain contaminants when necessary.
  5. TExT and Maintenance: It is a legal requirement for all Local Exhaust Ventilation systems to undergo a Thorough Examination and Test (TExT) at regular intervals, however it is also imperative that LEV systems are to be maintained between TExT’s. Operators should perform a visual inspection of the LEV every time it is in use, cleaning the hood, ducts and fan as required, and replacing filters when needed.

Bonus Tip: Keep in mind that Local Exhaust Ventilation systems are typically tailored for a specific process or task. If there are changes in the process or contaminant, a new risk assessment is necessary to ensure the system remains effective and suitable for its purpose.

Whether you are an industry professional, workplace safety advocate, or simply someone keen on fostering a cleaner atmosphere, this guide is to equip you with actionable steps to make a positive impact on air quality through the strategic use of Local Exhaust Ventilation.

Synergy Environmental Solutions provide sampling and consultancy services throughout the UK and Ireland. We’re happy answer any questions you may have, or provide you with a obligation free estimate for your work. Visit the contact page or contact us on the details below:

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Tel: 01782 614236

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