Seek immediate medical attention if you have any of the six main signs of carbon monoxide poisoning – headaches, dizziness, nausea, breathlessness, collapse or loss of consciousness.
Ceisiwch ofal meddygol ar unwaith os bydd gennych unrhyw rai o'r chwe phrif symptom o wenwyn carbon monocsid - cur pen, pendro, cyfog, diffyg anadl, llewyg neu fynd yn anymwybodol.