Ventilation and IAQ

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The compact HOA control can replace a Vari-Green transformer and provide a 24-V power source from existing line voltage at the fan.

What products are engineers most interested in? Here are the top five most popular products at www.esmagazine.com.

What are engineers making time to read? Here is the five-item punch list of the most popular news articles, features, and columns at ESmagazine.com.

Nearly 60% of companies spent more than $500,000 and 26% spent more than $5 million to upgrade, install HVAC systems during the COVID-19 pandemic.

A feature in the design of the ventilation system of the welding shop is the need to achieve high results of purification of air masses with relatively low energy costs.

Purdue University engineers have proposed a system that combines new membrane technology with the latest HVAC systems to make 100% outdoor air systems more energy-efficient and economically feasible, especially in warm, humid climates.

The unit offers multiple air exchanges per hour and five-stage purification process.

AirWatch is a low cost and easy to install CO2 and airflow monitor providing at-a-glance red, amber, and green LEDs to show CO2 safety levels, and a blue LED that shows fresh airflow based on positive pressure.

New ventilation analytics provide insight, down to room level, to measure key areas of energy consumption.

The five-blade HVLS fan is now available in 4.3-, 5-, 6-, and 7-foot diameter sizes, in addition to the line’s 8- to 14-foot diameter sizes for more design flexibility.