The host failed to acknowledge the seriousness of a gas leak. We reported a gas leak and the host sent an (unqualified) person to assess the situation at midday - who told my wife there wasn't a gas leak. They were aware we have a five month baby and risked the safety of my family by failing to notify myself or my wife when they were aware there was a gasleak. This behaviour is absolutely dangerous and unacceptable. The host's entire portfolio should be suspended pending further investigation and independent review that his properties are safe. I have raised a formal complaint with Airbnb.