Fume and dust are the enemy of process-based operations. Poor workplace practices, particularly where hazardous materials are being worked, not only present a health risk to employees, they can also significantly impact productivity through downtime and create unnecessary cost for businesses.
In the UK, exposure levels to potentially harmful airborne contaminants are tightly mandated through the COSHH (Control of Substances Hazardous to Health) regulations and expressed as workplace exposure limits (WELs). These limits are presented in the Health & Safety Executive’s EH40 guidance as time weighted averages for either 15 minutes or 8 hours, in both ppm (parts per million) or mg/m3 (milligrams per m3).
“Employers are under a legal obligation to assess the risk to health created by work involving hazardous substances, taking account of any relevant WELs,” says Joshua Evans, an applications engineer at BOFA International, a global leader in portable fume extraction.









