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Reducing the Environmental Impact of HVAC Systems by Using R-32 Refrigerant
Hydrofluorocarbons (HFCs), as the name suggests, are compounds containing hydrogen, fluorine, and carbon. They are used for residential and commercial heating, ventilation, and air conditioning (HVAC) as refrigerants, by firefighters as a fire suppressant, and in aerosols as propellants.
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Taking Sustainability into the Space Age
The National Air and Space Museum (NASM), among the most popular museums in the world, opened in 1976 as part of the U.S. bicentennial celebration.
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The Implications of Room Design on COVID-19 Transmission
It was evident early on that COVD-19 is an airborne pathogen. “Superspreader Events,” such as those in the famous Guangzhou restaurant, the Diamond Princess Cruise Ship, the USS Theodore Roosevelt, and, most recently, the wedding in Millinocket, Maine, on Aug. 7, provided the evidence.
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