US 11,719,677 B1
Air quality sensors
Catherine Conway, Tysons, VA (US); Robert Nathan Picardi, Herndon, VA (US); Craig Carl Heffernan, Oregon City, OR (US); Daniel Marc Goodman, Needham, MA (US); and Harrison Wayne Donahue, Attleboro, MA (US)
Assigned to Alarm.com Incorporated, Tysons, VA (US)
Filed by Alarm.com Incorporated, Tysons, VA (US)
Filed on Aug. 21, 2020, as Appl. No. 16/999,734.
Claims priority of provisional application 62/896,991, filed on Sep. 6, 2019.
Int. Cl. G01N 33/00 (2006.01); F24F 11/62 (2018.01); F24F 110/72 (2018.01)
CPC G01N 33/0075 (2013.01) [F24F 11/62 (2018.01); G01N 33/0034 (2013.01); F24F 2110/72 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method comprising:
receiving data indicating a level of volatile organic compounds within an area;
determining an increase in the level of volatile organic compounds within the area;
receiving video data that shows the area;
determining, from the video data, that an item of furniture is located in the area at a first time and that the item of furniture was not located in the area at a second time, the first time being after the second time; and
sending a notification that indicates an increase in the level of volatile organic compounds is likely caused by the item of furniture being located in the area at the first time.