Posted February 24, 2020 “The fire chief said the men were using a gas powered trowel to smooth the basement floor…” https://www.wmtw.com/article/two-contractors-overcome-by-carbon-monoxide-at-north-yarmouth-maine-construction-site/30999029?fbclid=IwAR3Ur38osyue_CV7Qy5A5rTvX23q7-IJV2YqNXS0plIs2TUXVQyWDg-4soQ