Swedish Public Health Agency: Wear medical masks on public transport, not cloth masks
The Local Sweden
As some countries across Europe tighten up their requirements for face masks, the Swedish Public Health Agency does not currently recommend masks outside rush hour on public transport – but says that when you do wear a mask, a medical mask is better than a cloth one.
https://www.thelocal.se/20210122/swedish-public-health-agency-wear-medical-masks-on-public-transport-not-cloth-masks