Leaf Blowers & Yard Vacuums: CFM vs. MPH

When moving large piles of wet, heavy autumn leaves, which specification matters most: CFM or MPH?

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 Correct IncorrectCFM (Cubic Feet per Minute) measures total volume of air moved. High MPH (speed) can blow a narrow hole in a pile, but high CFM provides the wide air mass needed to push large heavy piles across grass.

When moving large piles of wet, heavy autumn leaves, which specification matters most: CFM or MPH?

• MPH only, because faster air is always better
• The color of the blower housing
• The length of the shoulder strap
• CFM (volume of air flow), which provides the pushing mass needed to shift heavy piles