Without mask, only with certificate but the doctor won’t issue it
22.03.2021
From March 11, people with advanced neurological, respiratory or circulatory diseases, with respiratory or circulatory failure, are exempt from wearing masks. Doctors are not obliged to issue certificates that someone cannot wear mask due to health condition, these certificates need to be presented to the police or municipal police – Sławomir Paruch comments for Prawo.pl.
Full article: here.