A fan filter unit comprises of a motor, a fan and a filtration system in one unit which is utilized for providing particle-free and laminar airflow to the working space or any room. It is also referred as the motorized air filtering equipment which often contains a small blower with matched fan (pre-filter), along with HEPA (High-efficiency Particulate Air) filter, MERV (Minimum Efficiency Reporting Value), or ULPA (Ultra-low Particulate Air) and an optional digital or solid-state speed controller in an aluminum or stainless-steel box. The unit maintains a specific airflow and is installed within the ceiling or floor grid of systems. Fan filter unit can be used to focus on targeted areas due to their small and portable airflow systems with sizes of 2 feet * 2 feet or 2 feet * 4 feet. Furthermore, fan filter units can be installed in existing cleanrooms without major reequipping and with standard changes in the systems. Fan filter unit is utilized to provide purified ...