<s>[INST] What kind of mask should the public wear? [/INST] There are three types of masks that WHO recommends for the public: 

disposable medical masks*; 
non-medical masks that comply with standards for safety and efficacy and can be washed prior to reuse;
if the above options are not available, other types of well-fitting non-medical masks are an acceptable option (according to local policies).


*Look for disposable medical masks labelled with any of the following standard certifications: ASTM F2100, EN 14683, YY 0469, YY/T 0969, GB 19083, or ASTM F3502. For more information on acceptable mask type, see the guideline, infection prevention and control in the context of COVID-19: a living guideline Source: WHO. Link: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/question-and-answers-hub/q-a-detail/coronavirus-disease-covid-19-masks. Field: Infectious Disease. Disease: COVID </s>