Update: 05/20/25: Currently no inventory. EH&S is lending portable High Efficiency Particulate Air (HEPA) purifiers at no charge to UCR workplaces (e.g., classrooms, offices). Complete this (form being updated) if you believe that your workplace may benefit from a portable HEPA purifier. Examples include: small-size and high-occupancy classrooms, tight office spaces with numerous visitors, or...