Structure made of 19 mm Thick Plyboard with melamine lamination finish. Work bench of perforated stainless steel. Side of work bench covered with transparent acrylic sheet/melamine. Front acrylic door of collapsible type. Properly balanced blowers fitted on H.P. Electric motor provided on the top portion to supply sufficient air to HEPA filter. HEPA filter provided on top of work bench horizontally to supply clean air to the work bench vertically.HEPA Filter efficiency 99.97%, particle retention >0.3 micron. Pre-filters provided on the top to provide filtered air to the blowers. Pre-filter efficiency 90.0%, particle retention >5.0 micron. One fluorescent tube and one U.V. Germicidal tube provided over work bench. Cock for gas on work bench. Static pressure manometer fitted on top. Back cover fixed with screws for convenient removal for attending blowers, filter and motor when needed. Laminar Air Flow Unit with Ply-board frame structure. Laminar Air Flow Unit with Ply-board frame structure.