This standard specifies the performance and the corresponding methods of test of A.C. ventilating fans for household and similar purposes intended for air forcing and exhaust, driven by single-phase a.c. motors having a power consumption of less than 125 W (including any associated regulators), for use on single-phase a.c. circuits not exceeding 250 V. This standard applies to ventilating fans such as partition fans for walls and windows and duct fans. NOTE This standard does not apply to Safety of electric fans for household and similar purposes (IEC 60335-2- 80); Performance of comfort fans (IEC 60879); Range hoods and other cooking fume extractors (IEC 61591) Airborne acoustic noise for fans (IEC 60704-2-7) Electromagnetic Compatibility of fans (CISPR 14-1 and CISPR 14-2, IEC 61000-3-2, IEC 61000-3-3)