What are compliance requirements for ventilation, temperature and relative humidity?

NFPA 99-2012, Chapter 9, requires ventilation, temperature, and relative humidity to comply with ASHRAE 170-2008 for new, renovated, altered, or modernized areas of the facility. Existing spaces may remain as originally designed provided evidence can be provided that the original parameters are being maintained. The Joint Commission would expect the organization to perform a gap analysis to validate that adequate infection control, space comfort, and process integrity can be maintained.