CREATE TABLE table_43602 ("Vacuum range" CLOB, "Pressure in hPa  ( mbar ) " CLOB, "Molecules / cm 3" CLOB, "Molecules / m 3" CLOB, "Mean free path" CLOB)

What is Mean Free Path, when Vacuum Range is 'medium vacuum'?
SELECT "Mean free path" FROM table_43602 WHERE "Vacuum range" = 'medium vacuum'
SELECT "Mean free path" FROM "table_43602" WHERE "Vacuum range" = 'medium vacuum'