LEV Testing & Servicing FAQs

Answers to common questions about local exhaust ventilation (LEV) testing, servicing, filters and installation. Find out what to prepare for a visit and what to do when an examination identifies defects.

For a practical example, read our laser extraction repairs and LEV retesting case study.

Frequently Asked Questions

  • An LEV system removes harmful dust, fumes, or vapours from the air before workers breathe them in. It pulls the dirty air away from the source and keeps the workplace safer and cleaner.

  • The cost depends on the size of your workplace, the type of process, and the number of extraction points you need. A quick site check or discussion usually gives a clear price estimate.

  • Filters should be changed when they get dirty or blocked. For most systems, this is every few months, but it depends on how often the system runs and what type of dust or fumes it handles.

  • First, the workspace and hazards are checked. Then the right hood, ducting, fan, and filter setup are planned. After that, the full system layout is created to make sure it captures contaminants properly.

  • Yes, most providers offer filters, hoods, ducting parts, fans, and other LEV components. You can replace parts as needed to keep your system running smoothly.

  • You can check if the airflow feels strong and if the filters look clean. The hood should pull in dust or fumes without letting anything escape. If you still see dust in the air or the airflow feels weak, the system may need a check.

  • An LEV system should be tested at least once every 14 months. Some places with more dust or fumes may need tests more often to stay safe.

  • COSHH and HSE say that workplaces must control harmful dust and fumes. You must have a proper LEV system, keep it in good condition, and test it regularly to follow the rules and keep workers safe.

  • Booking times depend on the company, but most give quick appointments. It’s best to contact early so you can choose a date and time that suits you.

  • If it fails, the problem will be explained to you. You’ll be told what repairs or changes are needed. Once fixed, the system can work safely again.

  • Yes, many providers give simple training to help your team use the system the right way, check airflow, and report any problems early.

  • Yes, older systems can be upgraded with better hoods, stronger fans, new filters, or improved ducting. These upgrades help the system work better and meet current safety standards.

Discuss Your LEV Requirements

Questions?

Quotes?

Just want to chat about air quality? We’re here to help.

sales@premierlev.co.uk

0161 884 4200