Tallafin sandar iska shine shigar da sandunan matsa lamba ɗaya ko fiye tsakanin murfin injin da jikin abin hawa, kuma elasticity na sandunan iska yana gyara murfin injin a buɗe.Wannan hanyar tallafi mai sauƙi ne, mara nauyi, mai sauƙin aiki, kuma ba zai haifar da lahani ga jikin abin hawa ba yayin amfani.