This document specifies the terms and definitions, classification and models, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, product samples and instructions, and quality commitments of air conditioning units for clean spaces (hereinafter referred to as units). wait. This document is applicable to units in clean spaces that use functional sections as combined units to complete one or more processing functions such as air transportation, mixing, heating, cooling, dehumidification, humidification, filtration, silencing, and heat recovery. The refrigerants are brine, ethylene glycol, direct evaporation coils and electric heating units, which can be used as a reference. This document does not apply to air-conditioning fan coil units, heaters and air-conditioning units for clean operating rooms with their own cold and heat sources.