At 10th grade, 1 cubic meter of air contains less than 0.5 micrometers of tiny particles and 10 small.
At 100th grade, 1 cubic meter of air contains less than 0.5 micron small particles and 100 small.
At 1000th grade, 1 cubic meter of air contains less than 0.5 micron small particles and 1000 small.
At 10000th grade, 1 cubic meter of air contains less than 0.5 micron small particles and 10,000.
At 100000th grade, 1 cubic meter of air contains less than 0.5 micrometers of small particles and 100,000.
Anti-static is 10 to the 9-11th power. Antistatic is 10 to the 7-9th power. Conductive is 4-6 power.
