Atmospheric particle data is derived from an eight-day average (Aug. 29 to Sept. 5). The data is a measure of how much light the airborne particles prevent from traveling through the atmosphere. | Sources: NASA Earth Observations; U.S. Forest Service; Herwig G. Schutzler (relief map) The New York Times

Ash from wildfires is flying all around the western part of the United States, has gotten up into the jet stream and is being carried across the continental US.  These particulates can get into your HVAC system and clog up the filters that reduce the life of your filtration system.  Operators should be aware that the ash can wreak havoc with maintaining the right amount of air passing through the system, potentially causing poor indoor air quality and reduced efficiency of your system.   It looks like the only thing that is going to stop the fires is rain or snow, and that may be a while in coming.  So when the ash subsides, it is recommended that operators check their filtration system and replace filters as required.  Also check outdoor equipment such as heat pumps, air conditioners and air-cooled chillers and clean heat exchangers if needed.

Post written by NEEC Smart Building Center associate Carol Lewellen.

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