ASHRAE Introduces Guide for Reopening Schools

ASHRAE Introduces Guide for Reopening Schools

School is back in (sort of) and the ASHRAE Epidemic Task Force is doing everything it can to help school districts and university campus environmental health managers, facility managers, administrators, technicians, and service providers navigate through these unprecedented circumstances. Most notably….

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Reducing the Transmission of Viruses with Humidification Part 2: Understanding Airborne Viruses

Reducing the Transmission of Viruses with Humidification Part 2: Understanding Airborne Viruses

The World Health Organization (WHO) made big news in early July by acknowledging increasing scientific evidence that COVID-19 (SARS- CoV-2) bears the risk of airborne transmission. But wait -- didn’t we already know that? The answer to that question is more complicated….

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Reducing the Transmission of Viruses with Humidification Part 1: Optimum RH Range

Reducing the Transmission of Viruses with Humidification Part 1: Optimum RH Range

Who would have imagined less than a year ago that our collective daily lives would be so greatly impacted by a single, air-borne virus? Yet here we are, recalibrating “normal” in the wake of COVID-19 (SARS- CoV-2). And while social distancing and masks dominate much of the public conversation, building humidification is the….

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Humidification Basics Part 10: Types of Humidifiers

Humidification Basics Part 10: Types of Humidifiers

Now that we know there are two processes (adiabatic or isothermal) by which we can achieve humidification, let’s talk about the various types of humidifying equipment within these process categories.

Starting with isothermal, there are several types of humidifiers and configurations to choose from. The common denominator is....

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Humidification Basics Part 8: Adiabatic Humidification

Humidification Basics Part 8: Adiabatic Humidification

In the previous blog we discussed isothermal humidification.  Today, we’re going to talk about the other method for humidification, which is called “adiabatic.”

Adiabatic humidification puts water (not steam) directly into the air using a spray mechanism or wetted medium, and the heat from the surrounding air causes the water to evaporate. So instead of...

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