Haʻahaʻa ka walaʻau, e hana ana i kahi wahi hana ʻoi aku ka launa pū me ke kaiapuni. Hana ka compressor ʻelua-paepae i ka wikiwiki haʻahaʻa, a me kahi pā leo paʻa piha, ʻo ka walaʻau hana he haʻahaʻa e like me 68-72 decibels, e hoʻopau ana i ka walaʻau ʻino a hoʻomaikaʻi i ka ʻoluʻolu o ka hana.
Hoʻolako kinoea nui e hoʻokō i ke koi kinoea kikowaena. Me kahi pae hoʻoneʻe kinoea o 5-100 m³/min, kūpono loa ia no ka hoʻolako kinoea kikowaena i nā hale hana, nā laina hana nui, a me nā hiʻohiʻona hoʻohana kinoea kiʻekiʻe e like me nā lole, nā mea uila, a me nā kemika.
