Air-Care Cobra-7 Air Duct Cleaning Machine (220v/50Hz) Products Sapphire Scientific Clear-View Upholstery Pro AW59 The stain came back a

The stain came back a few weeks later

pH as supplied: 10

DAILY RUNNING £ (AHAM):  £3

because the two halves of it are not the same claim

Air-Care Cobra-7 Air Duct Cleaning Machine (220v/50Hz) Products Sapphire Scientific Clear-View Upholstery Pro AW59 The stain came back aThe Air Care Cobra 7 is a cable driven power brush system for cleaning air conditioning ductwork and dryer exhaust ducts. A 90 volt DC motor in a portable case spins a 10 metre flexible cable fitted with a self adjusting Flex E Bristle brush. The brush is fed into the duct, the operator controls speed and direction from a wireless remote, and the rotating bristles break the contaminant film off the duct wall so a negative air machine can carry it