Just like someone said that he think that hotel due have carbon monoxide detectors,yes they due have but not all the hotels, likewise in security aspect,we have been hearing a lot of cases about someone's death in a hotel room, some will be murdered in a hotel room and escape even with the CCTV camera,so with all of this,i begin to know that hotel is not safe....
I think that the hotel does not need to install carbon monoxide detectors, because this is not a common occurrence. What really needs to be considered is the standards applied to the construction of a hotel, because I think this could happen due to poor ventilation, which traps toxic gases in the room. I have seen that some hotels do have poor ventilation systems, especially in rooms without windows. I believe that it is very rare for hotels to have toxic gas detectors, so to prevent something similar from happening to us, when you want to sleep in a hotel, choose a hotel room that has windows, and before relaxing, as soon as you enter the room, don't forget to immediately open the windows to allow air circulation.