Waalka iridda mindida waxaa si weyn loogu isticmaalaa xaalad cadaadis hoose sida saxarka iyo warqadda, dhuxusha, warshadaha kiimikada iyo warshadaha cuntada.NSEN waxay bixin kartaa hal jiho, laba jiho, fadhi bir ah, fadhi adkaysi leh iyo nooca marin-mareenka.Ku soo dhawoow inaad nala soo xidhiidho si aad u hesho dalabka ama aad u habayso valve mashruucaaga.