Ventilation and IAQ

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A 251-site test-and-balance field study across forty national and regional quick-service brands found 91% running net-negative pressure, 46% of make-up air units not working, and a median imbalance of nearly 1,900 CFM.

From tree forts to global standards, new ASHRAE president Bill McQuade is shaking up the HVAC world with a vision that puts human health and comfort front and center.

Exclusive for ES NEWS, a no-nonsense guide for TAB pros and engineers, featuring real-world troubleshooting strategies from Cody Shook of Precision Flow Engineering.

Q-PAC’s Multimotor Plenum Fan is now HCAI OSP-0875 certified, delivering a modular, code-compliant HVAC fan option engineered to stay operational during earthquakes.

When air handlers first enable economizer mode, overlooked control sequences can trigger temperature and humidity spikes that pose real risks to critical environments.

Faster chilling, fewer hot spots, and a new gold standard for food safety – a new study reveals how airflow design upgrades are changing the way meat is safely cooled.

Small steps matter, but the key to lower energy consumption lies with the decisions of architects, engineers, and legislators. Guest columnist Dan Reider, P.E., explores what really makes a difference.

In a guest column for ES NEWS, President and Founder of Aerapy UV Disinfection Technology Annette Uda reveals how upper-room UV-C technology guards against airborne threats, transforming indoor air quality.

New codes are pushing engineers to balance energy, air quality, and cost. Navigate the latest ASHRAE standards with practical strategies for both new buildings and retrofits—while meeting rising demands for verification and transparency.

ES NEWS' Guest columnist Juwanna Anderson of Rheem explains why success in HVACR now means embracing “a fundamental commitment to continuous improvement.”