What is FFU air purification unit? A fan filter unit (FFU air purification unit) is a type of motorized air filtering equipment. It is used to supply purified air to cleanrooms, laboratories, medical facilities or microenvironments by removing harmful airborne particles from recirculating air. The units are installed within the system's ceiling or floor grid.

FFU air purification unit, also known as "air cleaner", air purifier, and purifier, refers to decorations that can adsorb, decompose or convert various air pollutants (generally including PM2.5, dust, pollen, odor, formaldehyde, etc. Pollution, bacteria, allergens, etc.), products that effectively improve air cleanliness are mainly divided into household, commercial, industrial, and building.

There are many different technologies and media in the FFU air purification unit, enabling it to provide clean and safe air to the user. Commonly used air purification technologies include: adsorption technology, negative (positive) ion technology, catalytic technology, photocatalyst technology, superstructured photomineralization technology, HEPA high-efficiency filtration technology, electrostatic dust collection technology, etc.; material technologies mainly include: photocatalyst, activated carbon, Synthetic fibers, HEPA high-efficiency materials, negative ion generators, etc. Most of the existing air purifiers are composite types, that is, a variety of purification technologies and material media are used at the same time.

How does an FFU air purification unit work?

A fan filter unit is a motorised unit which supplies clean, filtered air to a cleanroom. Air is drawn via the fan, through a pre-filter and then through a HEPA or ULPA filter which filters the sub-micron particles ensuring a clean and processed air supply.