Questions about carbon monoxide poisoning. ?

If you have someone else you can take your cat to, that would be best. Do you know what level of carbon monoxide there is in your house? 500 can be deadly, but on the news this morning I heard about a family of 5 went to the hospital and the level of carbon monoxide was 700. I would think that because your cat is so much smaller than a human, she might be affected worse. It is kind of a rough spot to be in, like, do you leave your cat indoors so she is exposed to the C.M., or put her outside all day in the freezing weather. Oh, I wish you and your kitty the best of luck.