High-efficiency masks up to six times better at filtering aerosols than cloth, surgical masks: Canadian study
… The researchers found that R95 masks were able to filter out 60 per cent of exhaled aerosols, and KN95 masks could filter out 46 per cent.
On the other hand, cloth masks and surgical masks only filtered out 10 per cent and 12 per cent of exhaled aerosols, respectively.
These are the only masks I have used.
