The AiR+ Rotobrush Air Duct Cleaning Machine
https://www.rotobrush.com/products/air-duct-cleaning-equipment/air-plus-air-duct-cleaning-machine/
WEBThe Rotobrush aiR+ is designed to give you the cleanest air ducts possible. It works by inserting the brush, which rotates at 450 rpm, inside the air duct. While the brush spins, it is loosening any debris stuck inside.
DA: 70 PA: 53 MOZ Rank: 98