Accessories such as face shields, sun visors, earmuffs, and perspiration-absorbing lining cloths could also be used; today, attachments include radios, walkie-talkies, pagers, and cameras.
Humid climate, or humid air within buildings, makes some people extremely uncomfortable, causing excessive body perspiration that can not evaporate in the moisture-saturated air.
Cooling of the human body through perspiration is inhibited as the wet-bulb temperature (and absolute humidity) of the surrounding air increases in summer.
