Il-funzjoni primarja tal-fannijiet kontra l-isplużjoni mhix li tevita li l-fann innifsu jisplodi, iżda pjuttost biex tissalvagwardja kontra splużjonijiet tat-trab fl-issettjar tal-produzzjoni. F'ċerti industriji, il-proċess tal-produzzjoni jiġġenera trab u materjali fjammabbli u splussivi, bħal trab tal-metall u tal-faħam. Biex tikkontrolla dawn il-partiċelli perikolużi, exhaust systems are commonly employed for extraction and collection.
In such scenarios, the occurrence of friction and sparks in a fan could pose a significant risk. Għalhekk, the imperative need for explosion-proof fans. These fans undergo specialized treatment, featuring materials distinct from regular fans, to ensure enhanced safety in these high-risk environments.