The article mentions about the method and the solid dust generator DG-NaCl 02 that have been researched and assembled by the National Institute for Labour Protection (NILP). This equipment can generate more than 109 particles/cm3 of solid dust with the size of less than 1µm from NaCl, in which have particles/cm3 within the range of - µm. The advantages of this equipment are stable work; simple in operation and it can easily be satisfied the requirement of effective assessment for the filters.
