DYSON V8 CORDLESS VACUUM CLEANER. A FULLY REFURBISHED DYSON CORDLESS CLEANER. The motor body is individually tested for suction, performance, noise and that it is running at the correct temperature. The cyclone assembly, which is at the heart of the design of all Dyson cleaners is stripped, jetted out with compressed air, then thoroughly cleaned, to ensure 100% airflow and no loss of suction power.