Recently, cases of carbon monoxide poisoning have become more often in the Republic of Tatarstan, including fatal cases. Just from January 3 to 10, 15 people, including 7 children, were poisoned by carbon monoxide. As stated by Chairman of Zelenodolsk District and City Department Council of Tatar Republican Department of “All-Russian Voluntary Firefighting Association” Ayrat Z. Kadyrov, the main causes of the incidents are absence, defect of wrong installation of chimneys, defect in safety automatics, violation of gas equipment use rules.