Christmas tree fires are some of the deadliest home fires that firefighters and paramedics respond to. If you bring a live tree into your house, make sure to water it every day and do not leave the lights on when you are out of the house or asleep. In this video National Institute of Standards and Technology (NIST) fire researchers demonstrate what could happen if a fire starts in a watered Christmas tree vs. a dry Christmas tree. Watch the video here: https://youtu.be/bhmrjDNtjcs