What does high vac mean for a mower?

"High vac" in the context of a mower typically refers to a high vacuum capability for collecting grass clippings, leaves, and debris. This feature enhances the mower's ability to efficiently gather material while mowing, reducing the need for additional clean-up afterward. A mower with high vac functionality often has a specially designed deck and collection system to maximize suction and ensure a tidy cut. This is particularly beneficial for maintaining a clean lawn and preventing thatch buildup.