what is the quietest portable generator

{"cid":"91225501","title":"4.5kva 5kw Quietest Portable Generator Portable Backup Generator Single Phase","imgUrl":"https:\/\/img.chinax.com\/nimg\/09\/0a\/50511aa99bfc6ad49c42f4eca174-200x200-1.jpg","attrs":{"Price":"Negociable","Brand Name":"Global Power","Model Number":"GPD6500X","Minimum Order Quantity":"1set","Delivery Time":"25 working days after received down-payment","Certification":"OEM\/ISO9001","Place of Origin":"Jiangsu, China","Payment Terms":"T\/T or LC","Supply Ability":"2,000sets\/year","Packaging Details":"FOB, CRF,CIF,EXW\u2026","Prime Power (kva)":"4.5","Standby Power (kw\/kva)":"5","Voltage(V)":"220","Rated Voltage (V)":"400\/230","Configuration":"Single phase, three loops","Package":"Plastic Foam Packing or Plywood Case","Noise level\uff087m\uff09dB(A)":"97"}}

{"cid":"91198486","title":"2KVA 4.4L ISO 9001 Lightweight Portable Generator","imgUrl":"https:\/\/img.chinax.com\/nimg\/8b\/2f\/c2c595da2a50cc90a336e01ea7fd-200x200-1.jpg","attrs":{"Price":"Based On Order","Brand Name":"DEHRAY","Model Number":"RIG2000","Minimum Order Quantity":"N\/M","Delivery Time":"20 Working Days","Certification":"CE, EURO V, EPA, ISO9001","Place of Origin":"CHINA","Payment Terms":"T\/T, L\/C, D\/P, Western Union, D\/A","Supply Ability":"500 Sets Per Week","Packaging Details":"Seaworthy Delivery Package\/ Wooden Package\/ Carton\/ Pallet","Product Name":"2KW Inverter Generator","Model No.":"RIG2000","Power Rate":"2KW","Rated Frequency":"50\/60 Hz","Rated Rotation Speed":"5000 rpm","Phase Number":"Single Phase","Engine Type":"Single Cyliner","Structure Type":"Air Cooled","Bore Stroke":"60\u00d740mm","Displacement":"0.113L","Starting System":"Recoil Starter","Noise Level":"62 dB(A)\/7m","Overall Dimensions":"530\u00d7290\u00d7430 mm","Net Weight":"23 kg"}}

{"cid":"91223026","title":"Portable Diesel Generator Optimal Performance Diesel Engine Generator Set Quietest Diesel Generator","imgUrl":"https:\/\/img.chinax.com\/nimg\/c2\/00\/df0982bb79610321d3bfc8cb03fc-200x200-1.jpg","attrs":{"Price":"Chat with supplier now for more details.","Brand Name":",Perkins,Stamford,etc","Model Number":"Customized Blue Diesel Generator","Minimum Order Quantity":"1 set","Delivery Time":"18-30work days Shipping fee and delivery date to be negotiated.","Starting system":"12V DC Electric Start, 24V DC Electric Start","Payment Terms":",Western Union,T\/T,D\/P,D\/A,L\/C","Cylinder number":"3,4,6,8,12cylinders","Rated Power (kw\/1500rpm)":"5-2250kva","Frequency":"50HZ\/60HZ","Dimension of set (mm)":"1485*700*1000mm~7300*2440*2800mm","Supply Ability":"100000set\/month","Product Nam":"Diesel generator set","Rated Power":"100KW,150KW,200KW,300KW,400KW,500KW,600KW,800KW,1000KW,1200KW,1800KW","Certification":"ISO\/CE\/COC","Rated Voltage":"48 V, 110 V, 220 V, 230 V, 240 V, 380 V, 400 V, 415 V, 480 V","Cooling System Type":"Water Cooling System","Type":"Trailer Type, Silent type, Container Type, Super Silent Type, Open Frame, Portable Type, Mobile Type, Canopy Type","Application":"Factory,Building,Farm,Bank etc","Noise level dB(a)":"65-95\/1m","Speed":"1500\/1800RPM","Protection Function":"Low Fuel, High Water, High Oil, Overload","Place of Origin":"Zhejiang, China","Rated Current":"9-4061A","Phase Number and connection":"3-phase 4-wire system","Environmental Conditions":"Altitude\u22641000M, Cooling air temperature -15\u00b0C~ 40\u00b0C, Relative humidity\u226490%","Packaging Details":"Nude package for machines, Wooden box package for spare parts, Or customer demand.","Fuel Tank":"0ver 8 running hours fuel tank"}}

{"cid":"91203458","title":"Household Quietest Portable Oxygen Concentrator O2 Generator For Home","imgUrl":"https:\/\/img.chinax.com\/nimg\/16\/a8\/c96dbe334351bc693cc1deb9229b-200x200-1.jpg","attrs":{"Brand Name":"AMONOYhealth","Model Number":"ZY-2A","Minimum Order Quantity":"1Pieces","Delivery Time":"5-8 work days","Place of Origin":"Anhui, China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union","Packaging Details":"carton packing 266*230*295MM","After-sale Service":"Online technical support","Noise Level":"less than 40dB","Product Size":"27*23*30cm","GW\/NW":"7.5\/6.5KG"}}