I don't work day to day in this plant, but have an ownership interest in the business. About a month ago the bathroom exhaust fan burned up and started a fire in the adjacent janitor's closet. The fire was put out by an employee using an ABC dry type fire extinguisher. Unfortunately there was an air handler return right above this area and a bunch of the extinguisher powder was sucked into the air handler and disbursed over the inventory room. Now everyone is worried about how corrosive this powder might be and ServPro has been brought in and produced an astronomical bid to clean the powder off everything. The insurance company will cover it, but I'd rather not see a claim on the insurance and for whatever its worth I consider this sort of a scam anyway. So the question is: How corrosive is this stuff? Is this a big deal? How about they just mop the floor and get back to work?