This series of product performance standards are as follows: GB3836.1-2010 "explosive atmospheres - Part 1: General requirements for equipment" GB3836.2-2010 "explosive atmospheres - Part 2: by flameproof enclosure" d "protection equipment" GB3836.4- 2010 "Explosive atmospheres - Part 4: by intrinsic safety" i "protected device" GB3836.9-2006 "Electrical apparatus for explosive gas atmospheres - Part 9: Encapsulation" m "" GB3836.15-2000 "explosive gas environment with electrical equipment - Part 15: Electrical installations in hazardous locations (except mine) "JB / 10538-2005" proof dehumidifier and air conditioners, "Gree air conditioner models explosion: BFKT3.5 (1.5 horsepower) function: Hanging being of rated voltage: 220V 50HZ cooling / heating Rated current: 5.9A cooling / heating rated power 1.48kw cooling (heating) capacity: 3.5kw circulating air flow: 550m3 / h Waterproof grade: 1P * 4 Noise (indoor / outdoor): 38 / 51dB NW (indoor / outdoor) 31 / 59kg Indoor Unit Dimensions (W profound mm): 805 * 290 * 219 outdoor unit size (width profound mm): 888 * 540 * 320