The potential of the Internet of Health Things (IoHT), also identified in the literature as the Internet of Medical Things (IoMT), is enormous since it can generate expressive impacts on healthcare devices, such as the capnograph. When applied to mechanical ventilation it provides essential healthcare to the patient and helps save lives. Then, this survey elaborates on a deep review of the related literature about the most robust and effective innovative healthcare solutions that have been using modern technologies, such as the Internet of Things (IoT), cloud computing, blynk, Bluetooth Low Energy, Robotics, and embedded systems. It emphasizes that IoT-based wearable and smart devices that work as integrated systems can be a faster response to other pandemic crises, respiratory diseases, or other problems that may occur in the future. It may also extend the performance of e-Health platforms used as monitoring systems. Therefore, this paper considers the state of the art to substantiate the study about sensors, highlighting the relevance of new studies, strategies, approaches, and novelties in the topic.