For the answer to make as much sense as possible, we need to look at 4 different types of leaf blowers. Cordless blowers have an average of 460 CFM (value gathered from 122 products) Corded blowers have an average of 395 CFM (value gathered from 55 products) Backpack blowers have an average of 672 CFM (value gathered from 76 products) Gas-powered blowers have an average of 681 CFM (value gathered from 65 products, without walk-behind blowers)