@thesis{thesis, author={Henry Syahfitra Giffari}, title ={Rancang Bangun Diffuser Berbasis IOT untuk Menciptakan Ruangan Sehat}, year={2021}, url={https://repository.ittelkom-pwt.ac.id/6532/}, abstract={In early 2020, there is a new virus called coronavirus (SARS-CoV-2) that is shaking the world and the disease is called Coronavirus disease 2019 (COVID-19). Who stated that in March 2020, there are 65 countries that have infected the COVID-19 virus. Need full awareness and action from both the government and the community so that the spread of corona virus can be suppressed. The idea of designing an IoT-based diffuser is due to the large number of needs for a diffuser as a way to make the room more humid and cleaner from bacteria, but the current diffuser is still operated manually. From the design result, it is proven that the temperature and humidity values seen on the serial monitor using the DHT11 sensor on the Arduino IDE are 100% the same as the monitoring results using the Thingview and Thingspeak applications. Software testing using Thingview and Thingspeak applications with 54 random data taken for 3 days of testing with a humidity value that appears more often above 70 RH%, which indicates the Grove – Water Atomization module is more often off status because the room used for the test, which is 2x3 meters long and wide, is already quite humid. Keywords: : COVID-19, Diffuser, ESP8266, DHT11, Arduino IDE, Grove – Water Atomization, Thingspeak} }