
How often should LEV testing be done?
The Commissioning (initial) LEV Report The report is completed after installation to check that new system effectively controls the hazardous substance. The LEV system is usually put in to use after electrical installation and issue of the IEE certificate, and before LEV Commissioning (unlike other plant commissioning, when plant is not used until after commissioning). The Commissioning Assessment determines the operating criteria against which future assessments of the syste
Why should I use P&J Dust Extraction to test my Local Exhaust Ventilation (LEV) Plant?
P&J Dust Extraction Ltd are UKAS accredited for LEV Inspection & Examination services. No other dust or fume extraction manufacturer has been accredited for LEV testing. The United Kingdom Accreditation Service (UKAS) UKAS is recognised by the UK Government as the sole UK national accreditation body responsible for assessing and accrediting the competence of organisations in the fields of inspection, measurement, testing and the certification of systems, products and personne

What is Local Exhaust Ventilation (LEV) Plant?
LEV is a system that: uses extract ventilation to prevent or reduce the level of airborne hazardous substances from being breathed by people in the workplace; draws pollutants away from a process or operation that is likely to release a hazardous substance into the workroom air; and consists of an inlet such as a hood, slot, booth, or cabinet placed around or close to the point of release of the substance. This device is connected via ducting to the inlet of a fan or air mov
What are the questions the HSE tell you to ask your LEV supplier?
To accompany the new requirements for LEV detailed in HSG258 2008, the Health and Safety Executive (HSE) have released a publication called "Clearing the Air: A simple guide to buying and using local exhaust ventilation (LEV)" (INDG408) which states that: "You must make sure that anyone who designs, selects, checks and maintains the LEV system and does the thorough examination and test is competent. They should have the knowledge, skills and experience to do the job properly.
Is a Vacuum cleaner Local Exhaust Ventilation (LEV)?
No, a vacuum cleaner is not LEV when used for cleaning surfaces. Yes, a vacuum cleaner is LEV if it is connected to a portable machine or tool. Therefore, the USE to which the vacuum cleaner is put determines if it is LEV. If it is used to CONTROL or EXTRACT dust emissions from a tool or machine then it is LEV and must be maintained and inspected in the same way as any other LEV/ DUST Extraction System.
What are the causes of fire in Local Exhaust Ventilation (LEV)?
What dusts are explosible? The dust of many combustible materials in everyday use, such as coal, wood, grain, sugar, certain metals and synthetic organic chemicals, when dispersed in air to form a cloud, can explode if an ignition source is present. When a mass of solid combustible material i.e a log of wood is heated it burns away slowly, layer by layer, owing to the limited surface area exposed to the oxygen of the air. The result is quite different if the same mass of mate
Why can't I eat, drink or smoke in the workshop?
RISK OF INGESTION If employees do not follow a high standard of personal hygiene, or do not handle substances with care, solid materials or powder may get trapped under fingernails or transferred from overalls and clothing onto food. Where substances which are potentially hazardous by ingestion are used, employers should ensure that employees remove any contaminated clothing in the area set aside for this activity, thoroughly wash their hands and face and scrub their fingerna

What is Dust?
Dust - is a solid particulate with diameters of 0.1micron upwards, capable of temporary suspension in air. Dusts are usually derived from larger masses through the application of physical force. Dust is further categorised depending on its size. The smaller the particle the deeper it penetrates into the lungs, where it may settle onto the lining, which are known as Respirable dusts. Larger particles, known as Total Inhalable Dusts, have detrimental effects on the upper resp

What Are The Recommended Duct Transport Velocities?
Recommended velocity ranges are shown below, they can vary with the specific qualities of the particle (size, dampness etc) and the duct design.
I am self employed, do the COSHH regulations apply to me?
Yes. The CoSHH Regulations apply to the Self-Employed. Regulation 3 of the COSHH Regulations states that all of the COSHH Regulations apply to the Self-Employed except Regulations 10 & 11. Self Employed ‘One Man Band’ CoSHH requires you to comply with the requirements that apply for both Employers and Employees What you need to do: Regulation 6 Assessments of the risk to health created by work involving substances hazardous to health. (These do not need to be written down i