The U.S. Air Force, on behalf of the Air Force Institute of Technology, is conducting market research to identify qualified sources, including small businesses, capable of providing a nano-aerosol hygroscopicity–cloud condensation analyzer at Wright-Patterson Air Force Base, Ohio. The contractor must provide all personnel, equipment, tools, materials, supervision, and services required under the attached Performance Work Statement. This Sources Sought notice is for market research only; responses are voluntary, are not offers or proposals, and will help determine whether the acquisition will be full and open competition or a set-aside. Interested parties should submit a capability package with clear evidence of ability, company and contact information, and business size status under NAICS 488390. Prospective contractors must be registered in SAM and, for award eligibility, must meet CMMC Level 1 self-certification requirements recorded in SPRS.