This reservation was a complete bust. I arrived to get the keys and was walloped with a wild chemical smell in the lobby, staircase and at the door to the apartment. I asked what it was and was told maintenance. I could not figure out what could cause that. I was breathing into my shirt but my eyes and chest burned. I thought about what to do and contacted the host. He confirmed the place was fumigated and it happened monthly in the first week of the month! I was repulsed and knew I could not stay in a toxic soup. There was no way to avoid the common areas to enter and exit. In addition doors in CDMX are not sealed so fumes entered the unit. I assumed the host would accept my cancellation and refund my money. He refused and suggested 50%. I booked another place because I had no choice. When I asked again for a full refund the host treated my request as absurd and refused to pay anything. I went through AirBnb and recovered my money. Stay away from this host.