ʻAno kānana ea moena aniani ʻano kiʻekiʻe ASHRAE pahu.
• Loaʻa i loko o ʻekolu mau pono, MERV 11, MERV 13 a me MERV 14 ke hoʻāʻo ʻia e like me ASHRAE 52.2.
• Hoʻokomo ʻia i nā pulu aniani liʻiliʻi liʻiliʻi i hana ʻia i loko o kahi pepa pāpaʻi hoʻomoe mau. ʻOiai ʻaʻole pono e hoʻohana mau ʻia kekahi kānana ea i nā kūlana saturated, hāʻawi ka media moena aniani i kahi kiʻekiʻe o ka hana ma nā kūlana saturated ma mua o nā huahana media kiʻekiʻe.