Objective To explore the elements in hygienic management of central air conditioning ventilation systems (CACVS).
Methods Relevant domestic and international standards/regulations and inspection results from field surveys were retrieved to analyze the requirements of hygienic management for CACVS.
Results Six elements in hygienic management of CACVS were identified from the comprehensive analysis, including hygienic requirements in design phase, daily operation hygiene, hygiene indicators and standards, inspection standards and methods, hygienic evaluation, and cleaning.
Conclusion The proposed 6 hygienic management elements of CACVS provide a technical basis for daily operation and hygienic supervision.
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