Inspect, validate, and repair HEPA filters by checking air velocity, checking static pressure readings, performing dioctyl phthalate (DOP smoke test) inspections, inspecting fan systems to check air flow/air balance and to make necessary adjustments to belts, motors and prefilters to maintain efficiency, checking and validating alarms, replacing differential pressure switches, and cleaning blower cabinets in hoods. Our current groups include: Africa, Middle East, Central Asia (AMECA), Black Employees at Lilly (BE@Lilly), Chinese Culture Network (CCN), EnAble, Evolve, Lilly Indian Network (LIN), Organization of Latinx at Lilly (OLA), Pride (LGBTQ+ Allies), Veterans Leadership Network (VLN) and Women's Initiative for Leading at Lilly (WILL).