why do we feel suffocated in a closed room Share with your friends Share 1 Neha U. answered this Closed room does not permit fresh air to come in and therefore due to non availability of fresh air to breath, person might feel suffocated. 4 View Full Answer Anubhab Das answered this Inside a closed room, the amount of OXYGEN is limited. As we respire we use up all the OXYGEN and instead of it we fill the room with CARBON DIOXIDE. So we feel suffocated. 3