ANOTHER SYSTEM OF CLASSIFICATION FOR CLEAN ARE

ANOTHER SYSTEM OF CLASSIFICATION FOR CLEAN AREA

Class	Number of Particle Diameter (um)
	0.1	0.3	0.5	5
1	35	3	1
10	350	35	10
100		300	100
1000			1000	7
10,000			10,000	70
100,000			100,000	700