Tips of vacuum type What is Qs? Qs means air flow capacity; it equals to CMM or m3/min. What is La? La means horse power. La transforms to Hp → La / 0.75. Ex. 0.75 / 0.75 = 1 Hp. PERFORMANCE CHART Click pictures to enlarge. PAGE 1 PAGE 2 PAGE 3 PAGE 4 PAGE 1 PAGE 2 PAGE 3 PAGE 4