Local Exhaust Ventilation (LEV) Testing

Local Exhaust Ventilation (LEV) Testing

What is Local Exhaust Ventilation (LEV)?

Local Exhaust Ventilation (LEV) systems are designed and local exhaust ventilation testingengineered to protect employees from exposure to airborne contaminants or contaminated air. This is done by capturing and containing dust, fumes and other hazardous substances that can be produced in the workplace.

There are local exhaust ventilation regulations, which employers have to follow in order to be compliant with health and safety law. Furthermore, each system must undergo adequate and sufficiently frequent LEV testing to ensure correct working.

Every year hundreds and thousands of people are injured in the workplace. An unfortunately significant percentage of those are as a result of breathing contaminated air from factory process, production or other hazardous chemicals. This highlights the importance of local exhaust ventilation regulations.

Local Exhaust Ventilation Regulations

COSHH Regulation 9

Local Exhaust Ventilation RegulationsThe Control for Substances Hazardous to Health (COSHH Regulation 9) explicitly states the importance of regular maintenance of LEV systems. This includes the engineering controls and measures.

Employers have to put these in place to ensure adequate, regular examination and testing is carried out. Additionally, The Local Exhaust Ventilation Regulations further state that LEV systems must be assessed and tested at least once every 14 months. Furthermore, testing and maintenance records should be kept for a minimum of 5 years.


HSG258 Guidelines for Local Exhaust Ventilation

LEV RegulationsThe HSE’s HSG258 Guidelines state that all LEV systems must be maintained in efficient working order. It is therefore a legal requirement for employers to make sure that local exhaust ventilation systems are working properly.

HSG258 also state that LEV Airflow Indicators are an effective and efficient way of confirming when a local exhaust ventilation system is working correctly. As a result, it is safe to use.

Local Exhaust Ventilation (LEV) Testing

As stated in the COSHH Regulation 9 and HSG258, a regular maintenance plan and control measures must be in place.

What Is LEV Testing?

The main function of LEV systems, in any property or building, is to protect workers from exposure of airborne contaminants or contaminated air. This can include dust, fumes and other hazardous substances.

It is vitally important to ensure that those systems operate correctly. In addition to regular testing, service and maintenance must be conducted and documented. This is to ensure compliance with health and safety regulations and, more importantly, to protect staff.

What Is An LEV System’s Best Control Measure?

The HSE (Health and Safety Executive) recommends in HSG258 that LEV Airflow Indicators should be fitted to all LEVs.

Though there are other ways of manually assessing correct air flow. This included the costs, records required, and sheer man-power. This is often prohibitive if you have more than one or two systems.

Benefits of our Local Exhaust Ventilation (LEV) Testing

HSG258 Compliant

Easy To Install

Effortless Calibration

Tried and tested to be simple to use


Manufactured In The UK

local exhaust ventilation lev airflow indicator remote mounted hsg258