PSU MantraSECL commissioned 4 mist blower fog cannons to effectively mitigate airborne dustin its Hasdeo Area by NewsmantraMay 22, 2024 Share0 South Eastern Coalfields Limited has commissioned 4 mist blower fog cannons in its Hasdeo Area. These fog cannons are designed to use minimal water to effectively mitigate airborne dust, and improve quality of ambient air.