Hyperthcrmia can cause low working
efficiency,personal thermo一conditioning equipmentmay be used for the relief of hyperthermia.
Head region is prefered for local cooling because of its highcooling efficiency but its importance
has not yet been recognized. This paper provided a series of exper- mental evidences for
systematic demonstration of head cooling efficiency as well as its effectivetiess,which are
especially important in aviation activities.Several med...