Knowledge and attitudes about Covid-19 disease are very important so as not to cause an increase in the number of cases of Covid-19 disease. Knowledge of Covid-19 patients can be interpreted as the result of the patient knowing about the disease, understanding the disease, how to prevent it, treat it and its complications (Mona, 2020). Research conducted on the Ngronggah community found that there was a relationship between community knowledge and behavior to prevent Covid-19 by using masks (p=0.004). Public knowledge about preventing Covid-19 by complying with the use of masks has an important role in anticipating repeated incidents