How much CFM do I actually need in a cordless leaf blower?

For a typical suburban yard with hardscape and light leaf cover, 500-650 CFM is generally enough according to mainstream reviewers. Larger lots, wet leaves, or heavy fall cleanup benefit from 700+ CFM units like the Husqvarna 350iB or EGO 880. Reviewers across techgearlab and protoolreviews consistently note that air volume (CFM) matters more than peak MPH for moving piles.