Pollution Control Units, commonly abbreviated as PCUs, are specialized systems designed to remove grease, smoke, and odorous compounds from the exhaust airstream of commercial cooking processes. Often situated in commercial kitchens, especially those in urban areas or places with stringent air quality regulations, PCUs play a pivotal role in ensuring that the exhausted air meets environmental standards. These units employ a combination of technologies, such as electrostatic precipitators, activated carbon filters, and UV light, to capture and neutralize airborne contaminants. By doing so, PCUs not only protect the environment from potential pollutants but also reduce the risk of grease buildup in the exhaust system, which can be a fire hazard. Regularmaintenance, including cleaning and filter replacement, is crucial to ensure the efficient operation and longevity of a PCU, safeguarding both the environment and the establishment.