... Pressure Swing Adsorption ), by which the oxygen and the nitrogen are separated from the air, meantime, the harm materials ... standard.Alarm Sound Intensity: Conform to YY/T0298-1998 standard.Equipment Weight: Around 4.6 TonEquipment Height: 4000mmEquipment Room Area ... to worksite.5.2 Offer after sale service, including equipment debugging and adjustment, instructions on malfunctions, maintenance.5.3 ...