Examples of where health surveillance is appropriate under the criteria in COSHH Regulation 11(2)(b) are: Where there have been previous cases of work-related ill health in the workforce/place; Where there is a reliance on PPE, e.g. gloves or respirators, as an exposure control measure; e.g. printers wearing gloves to protect against solvents used during press cleaning, or paint sprayers using two-pack paints wearing respirators to prevent asthma. Even with the closest supervision there is no guarantee PPE will be effective at all times; Where there is evidence of ill health in jobs within the industry; e.g. frequent or prolonged contact with water (termed wet-working) causing dermatitis in hairdressers and healthcare workers, or breathing in mists from chrome plating baths causing chrome ulcers in platers.’ We strongly recommend avoiding blanket screening for all employees as it can provide misleading management results and waste money that could be spent on improving controls.