Fabtech Technologies International Pvt. Ltd. Manufactures Negative Pressure Type Containment Solution. Fabtech Technologies International Pvt. Ltd. Designs and manufactures Construction of Clean rooms and controlled environment for Pharmaceutical and Allied industries. The Negative Pressure Type Containment Solution is designed to operate under negative pressure with respect to ambient maintaining standard ACPH inside the workspace. The air flow arrangement is single pass system powered by motor blower of sufficient capacities to take care of designed air flow requirement.