As Temperatures Go Down, Carbon Monoxide Dangers Go Up

170 people in the U.S. die each year of carbon monoxide poisoning.
1:50 | 11/30/15

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Transcript for As Temperatures Go Down, Carbon Monoxide Dangers Go Up
Reminder now about the dangers of carbon monoxide poisoning. As temperatures go down, the risks go up in winter months. 170 people die in the U.S. Each year with carbon monoxide poisoning. This weekend, a scare at an apartment building in Texas. Here is Mara schiavocampo. Reporter: Tonight, a dozen neighbors in Texas recovering from carbon monoxide exposure. Evacuated from this apartment building Saturday after one person was found unconscious. 12 patients that all got transported to the hospital. Reporter: Officials say the leak came from a boiler room attached to the building exposure to the colorless, odorless gas can be an extremely dangerous winter hazard, as one Oregon couple also learned last week. Kendra Platt and Steven Roberts were enjoying a quiet night at home, when Platt says she started feeling sick. The next morning, she says she was still woozy. I braced myself, and fell and I land like this. And then Roberts passed out. I knew something serious had happened not sure what. If I passed out we both would have been dead right now. Reporter: But Platt was able to call 911. 2 patients, unknown situation. Reporter: The couple treated in a hyperbaric chamber to restore oxygen levels. Their leak believed to be from a broken hot water heater. Symptoms include headaches, dizziness, and vomiting. The treatment for people who suspect or know they have carbon monoxide poisoning include immediately removing themselves from that environment, getting into fresh, open air. Reporter: Experts add, make sure your home has a working carbon monoxide detector. Mara schiavocampo, ABC news, new York. We thank Mara for that

This transcript has been automatically generated and may not be 100% accurate.

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