Cleanliness in the hood
Moorfield Associates of Plumley, Cheshire, has released a laminar flow hood designed for the academic and medium usage professional market. Called the Clean-Hood, its design is based on Moorfield's fan filter units that make up the backbone of its Clean-Tent range of products. The fan filter unit consists of an epoxy-coated steel air box housing a centrifugal fan and air dampers/baffles. At the back of the box is a 400mm square spigot containing pre-filter and (if required) flange connection for a supply air duct. On the front of the unit is attached the final filter, which determines the quality of the air supplied. The filter is attached to the frame via a neoprene seal and siliconed into place. H14 Class 100 HEPAs are fitted as standard but other options are available on request. The fan is controlled by a variable speed rotary dial and on/off switch mounted on the front face of the fan filter unit (vertical model only). The fan can provide up to 1,100m3/hr through the filter at the industry standard 0.45m/sec face velocity. This ensures that the air change rate at the workstation is very high for the specified class. The fan filter unit is mounted on top of a 25mm box section steel frame. The frame is enclosed on three sides with clear acrylic sheet, designed to allow as much ambient light into the workstation as possible. Options include free standing stainless steel workbench, electrical pack, front face tri-fold valence and differential pressure gauge.
www.cleantent.co.uk