Profile: Safety Industries Asbestos Removal Equipment (Oakwood) Ltd specializes in industrial safety equipment. Our product line includes vacuum cleaners, decontamination units (DCU), injection equipment, airless sprayers, fume cabinets and respiratory equipment (RPE). The Numatic International range of HZ vacuum cleaners has been specifically designed to meet stringent requirements of industries where it is necessary to vacuum dusts that could constitute a health hazard. The Purair® basic ductless fume hoods are a series of high efficiency products designed to protect the user and the environment from hazardous vapors generated on the work surface.