First of all good housekeeping is essential in any and all workplaces. It is all fairly easy and within the realm of both front lines, on hand staff as well as daily and nightly cleaning crews. Clean floors and workplaces and keep them clean. Mop up or clean up spills immediately. Care though should be paid to the use of vacuum cleaners. Toxic materials especially biological can be spread through the air and atmosphere of a workplace wonderfully by vacuum cleaners. While vacuum cleaners suck up dust and spills they can be a most effective means of aerosol dispersant as well as spreading in the air dangerous and toxic material, which now made smaller and tinier may well escape the effects of even hospital quality hepa air filters in furnace and venting systems.