This document specifies the energy efficiency grades, minimum allowable energy efficiency values and energy efficiency test methods for surface cleaning appliances. This document applies to the energy efficiency testing and evaluation of household and similar vacuum cleaners, cleaning robots and floor washers supplied by alternating current or direct current with a single-phase rated voltage not exceeding 250 V. It specifically covers the following three categories of surface cleaning appliances: a)Vacuum cleaners whose primary function is floor dust removal, including dry vacuum cleaners with auxiliary functions such as simple water tank wet mopping or self-dust collection, classified into corded vacuum cleaners and cordless vacuum cleaners. b)Cleaning robots integrated with floor suction function or combined suction and floor washing functions; c)Floor washers whose primary function is wet floor wiping and sewage recovery via vacuum, which may come with accessories providing dry vacuum cleaning as an auxiliary function. This document does not apply to: a)Household and similar fabric cleaning machines; b)Wet carpet cleaning appliances; c)Central vacuum cleaners; d)Corded floor washers; e)Adhesive floor washers; f)Vacuum cleaners only for wet and dry waste cleaning without the function of removing dust from creviced hard floors and carpets.