Should I get a dual-roller or single-roller vacuum for pet hair?

Get a dual-roller vacuum if you have a shedding dog or cat. Single-roller brushes tangle and clog fast with animal hair, while dual-roller designs have a separate brush roll to agitate carpet and a second roller to pick up hair. For low-shedders or occasional use, a single-roller can work, but for daily shedding pets like labs or pugs, dual-roller saves frustration.