No ka hōʻailona a me ke kaula hoʻomalu i ka uila o nā ʻōnaehana kamepiula, nā lako mana uila, ka mīkini keʻena a i ʻole nā mea hoʻomalu kaʻina hana, kahi e koi ai i ka capacitance haʻahaʻa a me ka pale ʻana mai ka electromagnetic interference (EMI) a me ka electromagnetic radiation (EMR) me ka haʻahaʻa haʻahaʻa zero halogen a me ke ahi retardant koi.