News and Updates

Displaying 1 - 5 of 5

A white, square plastic CO2 meter sits on a table in a restaurant setting, reading 621 ppm.

NIST’s Indoor CO₂ Tool Can Help Assess Ventilation and Indoor Air Quality

July 19, 2022

The free tool calculates target CO2 levels based on the user’s desired ventilation rate and information about a building and its occupants.

A man in safety goggles crouches at the back of an open air-conditioning unit, looking at a handheld tester.

Spotlight: Overhauling the Refrigeration Industry to Fight Global Warming

June 26, 2022

NIST researchers are tackling the question of alternative refrigerant fluids.

Streamlined NIST Tool Could Help Homeowners, Renters Reduce Airborne Exposure to COVID

November 24, 2021

COVID-19 is still circulating in the U.S. and may once again gain traction as families and friends gather indoors over the holidays. There are several measures

A man in brown camouflage clothing, including baseball cap, gloves and ear protection, uses a long pole to clean the inside of an HVAC unit outside a military tent.

NIST Study Identifies Chemical Blends as Possible Alternative Refrigerants

May 29, 2019

More than a dozen chemical blends could serve as alternative refrigerants that won’t heat the atmosphere as much as today’s refrigerants do, or catch fire

Gas vs. Electric? NIST Says Fuel Choice Affects Efforts to Achieve Low-Energy and Low-Impact Homes

May 23, 2019

If you want to make your home as energy-efficient and green as possible, should you use gas or electric for your heating and cooling needs? Gas is the more eco

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Heating, ventilation and air conditioning equipment

News and Updates