ASHRAE Standard 170-2013 Ventilation of Health Care Facilities
MERV 14
HEPA
HEPA
ASHRAE 52.2-2012 Standard
ASHRAE
ANSI/ASHRAE Standard 52.2-2012: Method of Testing General Air Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size. The American Society of Heating,
2. ANSI/ASHRAE Addenda a, b, and d to ANSI/ASHRAE Standard 52.2-2012. Method of Testing General Air Ventilation Air-Cleaning Devices for Removal Efficiency by Particle