coronavirus covid-19 public poster with a red warning triangle and the text in croatian `obavezno nošenje maske za lice`

area attention black caution corona coronavirus covid covid19 croatian danger drawn dust epidemic face facemask flat flu graphic hand head health healthy human hygienic icon illustration infection info infographic information instruction lice mark mask maske measure medical notice nošenje obavezno person please pollution poster prevention print product protection public quick red required respiratory safe safety sign simple style surgical symbol text triangle vector virus warning wear wearing written