If you design or operate health care facilities, Standard 170 sets the minimum.
ANSI/ASHRAE/ASHE Standard 170 defines the minimum ventilation requirements for health care facilities and is developed in partnership with FGI and ASHE for adoption by code-enforcing agencies.

The 2025 update expands and clarifies requirements, including:
• New facility space types coordinated with FGI 2026.
• Updates for imaging, behavioral health, and outpatient spaces.
• Clarifications for ventilation during construction and unoccupied turndown.
• Added flexibility for international application.

For Operational Guidance that Supports Compliance…
Also check out ASHRAE/ASHE Guideline 43-2025, Operations Guideline for Ventilation of Health Care Facilities, which provides practical direction for day-to-day system operation and management.
Learn more and purchase your copy of Standard 170 and Guideline 43 here