Vista lateral de adolescente asiático en máscara protectora sentado bajo puente, concepto de contaminación del aire - Foto e imagen de stock

Portrait of athletic young man in sportswear wearing medical mask. Attractive male model wearing a yellow medical mask due to Covid-19 measures. Caucasian man wearing a mask to protect himself

Men wearing masks sit reading books on the stairs.

Portrait of athletic young man in sportswear wearing medical mask. Attractive male model wearing a yellow medical mask due to Covid-19 measures. Caucasian man wearing a mask to protect himself

Young man with mask and mobile phone on the street

Portrait of athletic young man in sportswear wearing medical mask. Attractive male model wearing a yellow medical mask due to Covid-19 measures. Caucasian man wearing a mask to protect himself

Side view of young student wearing protective face mask descending university stairs during pandemic