Home / Home / The Dreame L20s Ultra base station is genuinely huge and needs its own spotHome robot vacuum cleaningThe Dreame L20s Ultra base station is genuinely huge and needs its own spotThe base station is genuinely huge and needs dedicated floor space near a water source and drain, which may be an eyesore in a small space. Shop robot vacuums on Amazon As an Amazon Associate, Work Notes may earn.Related NotesThe Roomba j7+ Clean Base empties itself for weeksSuction power decides whether pet hair ends up in the bin or spread around the roomThe Roomba j7+ is the one for first-time buyers — it avoids disastersA self-emptying robot vacuum works fine for 3,000 sq ft — with one catchSelf-emptying docks trade money for weeks of freedom — and floor spaceExploreThe Roomba j5+ is made for parents who don't have time to pre-cleanBrushless motor vacuums don't lose suction over timeThe Roomba j7+ covers 1,200 square feet on a 75-minute chargeThe Roomba j7+ typically costs $600–700 and often drops to $500 on saleThe Roomba j7+ self-emptying base goes about two months between bag changesPrevious The Dreame L50 Ultra costs $1,000+ but rarely gets stuckNext The Dreame L10s Ultra's dust bag lasts two months in small households