A matsayin muhimmin yanki na kayan kariya na aminci, hannayen rigar kariya suna taka muhimmiyar rawa a yanayin yanayin aiki daban-daban. Ta hanyar samar da kariya masu yawa kamar yanke juriya, juriya na abrasion, sassauci da numfashi, zai iya kare gaba ko gaba ɗaya daga rauni, yana ba mu damar yin ayyuka daban-daban tare da kwanciyar hankali mafi girma.