Laminar flow principle involves double filtration of air through coarse pre-filters (up to 5 microns) and Hepa filter (down to 0.3 microns) for filtration of biological and particulate contaminants. A constant unit-directional air flow is drawn from the atmosphere and passed through pre and HEPA filters on the work surface. Fabricated out of reinforced ply board which is clad in from outside laminated sheet and inner exposed areas are finished in epoxy paint. Table top covered with the non-glaring laminated sheet or stainless-steel sheet (optional). Side panels are fixed and are made out transparent acrylic sheet. The front door is the folding type and made of the thick acrylic sheet. (Optional) The stand is built in type or detachable. Blower unit has AU or equivalent motor and is dynamically balanced with minimal sound & vibration level. Fluorescent lighting is also provided. A suitable UV tube is provided for sterilization. An acrylic block type manometer to measure static pressure in the chamber has been installed. Two-way gas tap for the gas line has also been provided.