Posted By Kelvin Hello all, Can anyone suggest a suitable organisation to carry out assessment of a ventilation system to determine its effectiveness and suitability in accordance with legislative requirements. While im here, how do people feel about the defacing of high vis vest i.e. writting names or slogans and even cutting the vest to make for smaller individulised garments. Thanks for your time Kelvin

Posted By Bill Elliott Try www.hvca.org.uk - The Heating & Ventilation Contractors Association