Steril-Aire’s Ceiling HEPA Pro+ is a HEPA air filtration system designed for installation above drop ceilings that runs independently to deliver an increased number of clean air changes per hour without interfering with HVAC system performance; minimizes sound for occupants; does not take up floor space like typical portable air cleaners; delivers market-leading clean air delivery per-dollar of any installed filtration system, the company notes; and distributed return and supply promotes better delivery of clean air and allows for different engineering strategies to be employed to protect occupants, Steril-Aire adds.