Roomba robot vacuum cleaners built by parent company iRobot have been marked down to half price on Amazon. The Roomba Max 705 combo robot vacuum and autowash dock is on sale for £499 — was £999. The Roomba 505 combo robot vacuum and autowash dock is also on sale for £329 — was £699. Get the Roomba Max 705 combo robot vacuum and autowash dock for half price from Amazon The Roomba Max 705 robot vacuum cleaner is a powerful two-in-one vacuum-and-mop robot from iRobot. Get 53% off the Roomba 505 combo robot vacuum and autowash dock from Amazon This Roomba robot vacuum is designed to combine powerful 70x more suction with smarter mopping to tackle everything from crumbs and pet hair to dried-on spills.