[Retracted] Research and Development of an IoT-Based Remote Asthma Patient Monitoring System

Table 5

Sensors comparison.

No.	Name	Pulse/heart rate	Body temperature	Humidity/temperature	Air quality	ECG	Activity sensor
1	This paper	YES	YES	YES	YES	YES	NO
2	Ref. [11]	NO	NO	YES	YES	NO	YES
3	Ref. [13]	NOT specified	NOT specified	NOT specified	NOT specified	NOT specified	NOT specified
4	Ref. [15]	YES	NO	YES	YES	NO	NO
5	Ref. [17]	YES	YES	YES	YES	NO	NO