Comprehensive Guide to Local Exhaust Ventilation (LEV) Equipment and Design

Understanding Local Exhaust Ventilation (LEV) Systems

Are you searching for insights into local exhaust ventilation (LEV) systems, including equipment options and design strategies? Welcome to our comprehensive guide! Here, we delve into the key aspects of LEV systems, covering equipment essentials, design principles, and testing methodologies.

Local exhaust ventilation (LEV) systems are engineered solutions aimed at eliminating airborne contaminants such as dust, fumes, and gases directly at their source within the workplace. By efficiently capturing and extracting these pollutants, LEV systems contribute significantly to maintaining a safe and healthy work environment.

 LEV Equipment Components

  1. LEV Extraction Units: Essential for generating airflow, extraction units (or exhaust fans/blowers) form the core of LEV systems, facilitating the removal of contaminants from the workspace.
  2. LEV Hoods: Positioned strategically near contamination sources, LEV hoods are designed to capture pollutants effectively. Variants like canopy hoods, capture hoods, and slot hoods cater to diverse application needs.
  3. LEV Filters: High-quality filters are integral to LEV systems, trapping particulate matter and other contaminants before the air is discharged into the atmosphere.
  4. LEV Ducting: Ducting connects the hood to the extraction unit, ensuring the smooth flow of captured contaminants out of the workspace.
  5. LEV System Design: Tailoring LEV systems to specific workspace requirements involves meticulous design considerations, optimizing efficiency and effectiveness.
Testing and maintenance are crucial for effectiveness

Testing & Maintenance

Regular testing and maintenance are essential for ensuring the ongoing effectiveness of an LEV system. Testing equipment, such as air velocity meters and particle counters, assess airflow patterns and contaminant levels, while routine maintenance tasks include filter replacement and duct cleaning.

Local exhaust ventilation systems secure occupational safety


Local exhaust ventilation (LEV) systems play a crucial role in safeguarding worker health and ensuring regulatory compliance. By understanding the fundamentals of LEV equipment and design, businesses can create safer and healthier work environments for their employees.

Stay Compliant with LEV Testing – Contact us today!

Don't compromise on workplace safety. Ensure your LEV systems are up to standard with comprehensive testing and maintenance services. Contact us today to explore how our tailored Viledon filterCair services can assist you in effortlessly passing your LEV tests, maintaining a safe and compliant workplace.