This year is again a very hot summer in Japan! But if you walk on the streets of Japan, you will see something very surprising. Almost everyone has masks on.
It is hot here in Israel too, and I find that on really hot days, wearing a mask with an absorbent liner is more comfortable. The air has dust and the mask absorbs sweat and helps against the dust and sand in the air. Sometimes I’ll forget I have it on. People do need to take the time to find something that is effective and works for them. I noticed in Japan there is a better variety for comfort and absorbency. Other places there aren’t so many options so I wear a cloth mask with a liner.