Hospital HVAC systems provide infection control, humidity management, and reliable operation for diverse spaces including patient rooms, operating theaters, and diagnostic areas. These systems must maintain different pressurization requirements in various departments while ensuring 100% reliability to support critical medical operations. They comply with ASHRAE Standard 170 and local health codes.
Operational Requirements
Operating rooms require 20 air changes per hour with positive pressure and 99.97% HEPA filtration. Patient rooms need 6-12 air changes per hour with specific pressurization based on isolation requirements. Temperature setpoints of 20-24°C and humidity between 30-60% RH are standard. Backup power systems and redundant equipment are mandatory.
Specialized Areas
Isolation rooms, negative pressure patient rooms, imaging suites, and laboratory areas each require different airflow patterns and filtration. Pediatric units and immunocompromised patient areas need enhanced contamination control.
System Reliability
Hospital HVAC downtime directly impacts patient safety and can result in operating room closures. Systems typically operate at 70-80% of nameplate capacity to allow failure tolerance. Preventive maintenance programs cost 10,000-25,000 dollars monthly but prevent emergency repairs costing 50,000-150,000 dollars.