Local Exhaust Ventilation (LEV) is an engineering system designed to reduce employee exposure to airborne contaminants (dust, mist, fume, vapour, gas) in the workplace by capturing the emission at source and transporting it to a safe emission point or to a filter/scrubber. 

The need to have Local Exhaust Ventilation (LEV)  to control worker’s exposure to harmful substances has been one of the important requirements of the Regulations made under Factories and Machinery Act 1967 and the Occupational Safety and Health Act 1994. Under Regulation 17(1) of Use and Standards of Exposure of Chemicals Hazardous to Health Regulations 2000, any engineering control such as LEV system must be inspected at an interval of not more than one month by the employer and examined and tested by a registered Hygiene Technician at an interval of not more than twelve months.

The objective of a Inspection and Testing of Local Exhaust Ventilation (LEV) is to comply with FMA 1967 legislative requirement and OSHA 1994 under USECHH regulation 2000. 


LISB offers comprehensive Noise Exposure Monitoring to measure the noise level that your employees are exposed to at your workplace. Through noise exposure monitoring, employers are acknowledged to set maximum permissible noise limits and provides hearing protection devices to employees.

Under Factories and Machinery (Noise Exposure) Regulations, 1989 that complying with The Department of Occupational Safety and Health (DOSH), requires employers to determine if employees are exposed to excessive noise in the workplace. Exposure to intense noise for an extended period of time may causes hearing loss which is either temporary, permanent, or a combination. Disability from hearing may cause the decrease in ability to identify spoken words or sentences, interfere to communicate and causes work-related disorders.


Under the Occupational Safety and Health (Use and Standard of Exposure of Chemicals Hazardous to Health) Regulations 2000,  the duty to perform an assessment of health risks arising from the use of chemicals hazardous to health at the place of work is mandatory whereby employers are not permitted to use any chemicals hazardous to health unless an assessment has been conducted by the competent person CHRA Assessor .

Chemical Health Risk Assessment (CHRA) is conducted with the purpose of enabling decisions to be made on control measures, induction and training of employees, monitoring and health surveillance activities as may be required to protect the health of employees who may be exposed to chemicals hazardous to health at work.

Our LISB certified Chemical Health Risk Assessment (CHRA) will conduct the assessment and will provide recommendations to enable the management to control risks of the chemicals to the workers.

Recommendations on the control measures will be based on the Hierarchy of Control as mentioned in Regulation 15 of USECHH 2000 Regulation


Chemical EXPOSURE monitoring is conducted to ensure that employee exposures to airborne chemicals are within permissible limits. These permissible exposure limits (PELs) have been established by the Occupational Safety and Health (Use and Standards of Exposure of Chemicals Hazardous to Health) Regulations 2000 (USECHH Regulations 2000) under the Occupational Safety and Health Act 1994 (OSHA 1994).

The purpose of the USECHH Regulations is to provide a legal framework for the employer to control chemicals hazardous to health with respect to their usage and to set workplace exposure standards so as to protect the health of employees and other persons at the place of work. 

Our LISB certified Hygiene Technician will conduct the Chemical Exposure monitoring as per requirement by the LAW.


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