2BT6F-KJ380F-A01Yuefresh Air Purifier

FCC Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The device has been evaluated to meet general RF exposure requirement.This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body .

Xingmeiji(Wuhan)TradingCo.,Ltd AttestationStatements NotCoveredEntityApplicant&NotCoveredEquipment To:FederalCommunicationsCommissionDate:Jan.10,26 7435OaklandMillsRoad, Columbia,MD21046,USA Ref:InformationRequiredbySection2.911(d)(5)(i)&(ii) FCCID:2BT6F-KJ380F-A01 Xingmeiji(Wuhan)TradingCo.,Ltd.(“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredList,establishedpursuantto§1.50002of referencechapter,asanentityproducing“covered”communicationequipment.Theequipmentfor whichauthorizationissoughtisnot“covered”telecommunicationsequipmentandvideosurveillance equipmentproducedbyentitiesidentifiedontheCommission’sCoveredListthatprohibitedfrom receivinganequipmentauthorizationpursuanttosection§2.903oftheFCCrules. Sincerelyyours, ApplicantSignature PrintedName:WANGYUEQUAN Title:BusinessManager Address：3rdFloor,Building4,No.777-1402,Guanggu3rdRoad,EastLakeHigh-TechDevelopmentZone, WuhanCity,HubeiProvince,China Tel.:+8615027091337 Email:[email protected]

Xingmeiji(Wuhan)TradingCo.,Ltd 1|Page AttestationStatements To:FederalCommunicationsCommissionDate:Jan.10,26.25 7435OaklandMillsRoad, Columbia,MD21046,USA Subject:AttestationofCompliancewithFCCCoveredListSoftwareRequirements FCCID:2BT6F-KJ380F-A01 ProductName:YuefreshAirPurifier Thisletterservesasanattestationthattheequipmentidentifiedabove☐is/☒isnot(selectone)"covered" softwareasdefinedundertheFederalCommunicationsCommission(FCC)CoveredListrequirements,as outlinedinFCC22-84andKDB986446. Specifically,theundersignedcertifiesthattheequipmentforwhichauthorizationissought: 1.Doesnotcontaincybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab, Inc.oranyofitssuccessors,assignees,parents,subsidiaries,affiliates,oranyentitythathasrebranded orrelabeledsoftwareproducedbytheaforementionedentities. 2.Doesnothavethecapabilitytostore,run,ordeliveranysoftwareidentifiedontheFCCCoveredList, includingbutnotlimitedtocybersecurityandanti-virussoftware. Tosupportthisattestation,theappendixevaluationdocumentationhasbeenpreparedandisincludedinthe certificationfiling. Thisattestationisbasedonathoroughevaluationofthedevice'sdesign,functionality,andsoftware environment.Theundersignedaffirmsthattheinformationprovidedisaccurateandcompletetothebestof theirknowledge. Sincerelyyours, ApplicantSignature PrintedName:WANGYUEQUAN Title:BusinessManager Address:3rdFloor,Building4,No.777-1402,Guanggu3rdRoad,EastLakeHigh-TechDevelopmentZone, WuhanCity,HubeiProvince,China Tel.:+8615027091337 Email:[email protected] Xingmeiji(Wuhan)TradingCo.,Ltd 2|Page EvaluationregardingtotheCoveredListSoftware: Compliance Methodology EvaluationProcessResults Deviceis Inherent compliance ☒ TheChipset(s)usedislimitedtorun theCybersecurityoranti-virus software. Compliance ☒ TheMemoryusedislimitedtorunthe Cybersecurityoranti-virussoftware. Compliance ☒ Thereisstoragecapacitylimitationfor storeorinstalltheCybersecurityor anti-virussoftware. Compliance ☒ Operatingsystemusedislimitedto run,installordelivertheCybersecurity oranti-virussoftware. Compliance Deviceisnot Inherent compliance ☐ EvaluationBasedonSoftware BillofMaterials(SBoM) Seeattached“SBoM“ Note:TheSBoMcontentislimited tothescopeofcoveredlist software(e.g.antivirusand cybersecuritysoftware). ☐ EvaluationBasedonScanfor Softwareonthedevice ☐ EvaluationBasedonFilesystemscan ☐ EvaluationBasedonRunning softwarecheck

Xingmeiji(Wuhan)TradingCo.,Ltd U.S.AgentLetterofAttestation To:FederalCommunicationsCommission 7435OaklandMillsRoad,Columbia,MD21046,USA Date:Jan.10,26 Ref: AttestationStatement–Part 2.911(d)(7)filing FCCID:2BT6F-KJ380F-A01 [Xingmeiji(Wuhan)TradingCo.,Ltd.](“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,[TRANS-PACCHINALLC](“theagent”)isourdesignatedU.S.agentforserviceof processfortheabovereferenceFCCID.Theapplicantacceptstomaintainanagentforserviceof processintheUnitedStatesfornolessthanoneyearaftereitherthegranteehaspermanently terminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S.,orthe conclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolvingtheequipment, whicheverislater.TheapplicantfurtheracknowledgesitisourresponsibilitytoinformtheFCC whenevertheagentinformationchanges. [TRANS-PACCHINALLC]("theagent)understanditistheagent'sobligationtoacceptserviceof processintheUnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddress. DesignatedU.S.Agent CompanyName:TRANS-PACCHINALLC FRN:0036394526 3715S182ndStreet,C120Seatac,WA98188-9993 UnitedStates Signature: ContactPerson:LisaLee Tel:(818)818-0538 Email:[email protected] Applicant CompanyName:Xingmeiji(Wuhan)TradingCo.,Ltd FRN:0037846987 Address:3rdFloor,Building4,No.777-1402,Guanggu3rd Road,EastLakeHigh-TechDevelopmentZone,Wuhan City,HubeiProvince,China Signature: ContactPerson:WANGYUEQUAN Tel:+8615027091337Email: [email protected]

Xingmeiji(Wuhan)TradingCo.,Ltd (Jan,10,2026) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestfor:FCCID:2BT6F-KJ380F-A01 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestpermanent confidentialtreatmentoftheexhibitsaccompanyingthiscertificationapplicationasoutlinedbelow: BlockDiagram  Schematics  OperationalDescription Theaboveexhibitscontaintradesecretsand/orproprietaryinformationthatarenotpubliclyavailableand materialsthattheApplicanthasspentconsiderableeffortsindeveloping.Publicdisclosureofthesemay beharmfultotheApplicantandgiveanunfairadvantagetocompetitorsonthemarket. Sincerely, (Signature) Title:BusinessManager Address:3rdFloor,Building4,No.777-1402,Guanggu3rdRoad,EastLakeHigh-TechDevelopment Zone,WuhanCity,HubeiProvince,China Tel.:+8615027091337 Email:[email protected]

Xingmeiji(Wuhan)TradingCo.,Ltd (Jan,10,2026) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorizationforFCCID:2BT6F-KJ380F-A01 I,theundersigned,herebyauthorize(GuangdongKEYSTestingTechnologyCo.,Ltd.)toactonour behalfinallmattersrelatingtothisapplicationforequipmentcertification. Anyactcarriedoutby(GuangdongKEYSTestingTechnologyCo.,Ltd.)shallhavethesameeffectas ourownandIacknowledgethatallresponsibilityforcomplyingwiththetermsandconditionsof certification,asspecifiedbyDERYCOMCERTIFICATIONSERVICES,INC.,stillresideswithXingmeiji (Wuhan)TradingCo.,Ltd. WecertifythatwearenotsubjecttoadenialoffederalbenefitsthatincludesFCCbenefitspursuantto Section5301oftheAnti-DrugAbuseActof1988,21U.S.C.§862,andthatnopartytotheapplication,as definedin47CFR§1.2002(b),issubjecttoadenialoffederalbenefitsthatincludesFCCbenefits pursuanttothatsection. Sincerely, (Signature) (WANGYUEQUAN) (BusinessManager) Tel:+8615027091337 Email:[email protected]

FCCID:2BT6F-KJ380F-A01 Page 1 / 4 PHOTOSOFEUTEXTERNALPHOTOS EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 2 / 4 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 3 / 4 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 4 / 4 EUTPhoto

FCCID:2BT6F-KJ380F-A01

FCCID:2BT6F-KJ380F-A01 Page 1 / 14 PHOTOSOFEUTINTERNALPHOTOS EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 2 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 3 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 4 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 5 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 6 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 7 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 8 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 9 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 10 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 11 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 12 / 14 EUTPhoto EUTPhoto FCCID:2BT6F-KJ380F-A01 Page 13 / 14 EUTPhoto EUTPhoto PCBAntenna FCCID:2BT6F-KJ380F-A01 Page 14 / 14 EUTPhoto

TestReport ReportNo.:RKEYS251219056Date:Dec.26,2025Page1of6 GuangdongKEYSTestingTechnologyCo.,Ltd. Address:Building1,No.18,ShihuanRoad,DongchengSubdistrict,Dongguan,Guangdong,China Tel:+86-0769-22221088http://www.keys-lab.comE-mail:[email protected] Thisreportisonlyresponsibleforthetestresultsofthesamplessubmittedforinspection,andisnotresponsibleforthesourceofthesamplessubmittedforinspection. Thisreportshallnotbealtered,increasedordeleted.WithoutwrittenapprovalofKEYS,thistestreportshallnotbecopiedexceptinfullandpublishedasadvertisement. RFEXPOSUREEVALUATIONREPORT for Product:YuefreshAirPurifier Model:KJ380F-A01 FCCID:2BT6F-KJ380F-A01 ReportNo.:RKEYS251219056 Issuedfor Xingmeiji(Wuhan)TradingCo.,Ltd 3rdFloor,Building4,No.777-1402,Guanggu3rdRoad,EastLakeHigh-Tech DevelopmentZone,WuhanCity,HubeiProvince,China Issuedby GuangdongKEYSTestingTechnologyCo.,Ltd. Building1,No.18,ShihuanRoad,DongchengSubdistrict,Dongguan,Guangdong, China GuangdongKEYSTestingTechnologyCo.,Ltd. Address:Building1,No.18,ShihuanRoad,DongchengSubdistrict,Dongguan,Guangdong,China Tel:+86-0769-22221088http://www.keys-lab.comE-mail:[email protected] Thisreportisonlyresponsibleforthetestresultsofthesamplessubmittedforinspection,andisnotresponsibleforthesourceofthesamplessubmittedforinspection. Thisreportshallnotbealtered,increasedordeleted.WithoutwrittenapprovalofKEYS,thistestreportshallnotbecopiedexceptinfullandpublishedasadvertisement. ReportNo.:RKEYS251219056Date: Dec.26,2025 Page2of6 TABLEOFCONTENTS 1.TESTCERTIFICATION.........................................................................................................................................................3 2.GENERALINFORMATION...................................................................................................................................................4 2.1.GENERALDESCRIPTIONOFE.U.T................................................................................................................................4 3.RFEXPOSUREEVALUATION.............................................................................................................................................5 3.1.LIMITS....................................................................................................................................................................................5 3.2.CALCULATIONMETHOD.................................................................................................................................................5 3.3.TESTRESULT.......................................................................................................................................................................5 3.4.CONCLUSION.......................................................................................................................................................................6 GuangdongKEYSTestingTechnologyCo.,Ltd. Address:Building1,No.18,ShihuanRoad,DongchengSubdistrict,Dongguan,Guangdong,China Tel:+86-0769-22221088http://www.keys-lab.comE-mail:[email protected] Thisreportisonlyresponsibleforthetestresultsofthesamplessubmittedforinspection,andisnotresponsibleforthesourceofthesamplessubmittedforinspection. Thisreportshallnotbealtered,increasedordeleted.WithoutwrittenapprovalofKEYS,thistestreportshallnotbecopiedexceptinfullandpublishedasadvertisement. ReportNo.:RKEYS251219056Date:Dec.26,2025Page 3 of 6 1.TESTCERTIFICATION Product: YuefreshAirPurifier Trademark: yuefresh FCCID:2BT6F-KJ380F-A01 MainModel:KJ380F-A01 ModelList(s):/ Applicant: Xingmeiji(Wuhan)TradingCo.,Ltd Address: 3rdFloor,Building4,No.777-1402,Guanggu3rdRoad,EastLakeHigh-Tech DevelopmentZone,WuhanCity,HubeiProvince,China Manufacturer: WuhanYuefreshTechnologyCo.,Ltd. Address: 3rdFloor,Building4,No.777-1402,Guanggu3rdRoad,EastLakeHigh-Tech DevelopmentZone,WuhanCity,HubeiProvince,China Applicable Standards: CFR47,FCCPart2.1091 TheaboveequipmenthasbeentestedbyGuangdongKEYSTestingTechnologyCo.,Ltd.andfound compliancewiththerequirementsinthetechnicalstandardsmentionedabove.Thetestresultspresentedin thisreportonlyrelatetotheproduct/systemtested.Theothersimilarequipmentwillnotnecessarilyproduce thesameresultsduetoproductiontoleranceandmeasurementuncertainties. Preparedby: EvanFang/Engineer Approvedby:BruceZhang/Manager GuangdongKEYSTestingTechnologyCo.,Ltd. Address:Building1,No.18,ShihuanRoad,DongchengSubdistrict,Dongguan,Guangdong,China Tel:+86-0769-22221088http://www.keys-lab.comE-mail:[email protected] Thisreportisonlyresponsibleforthetestresultsofthesamplessubmittedforinspection,andisnotresponsibleforthesourceofthesamplessubmittedforinspection. Thisreportshallnotbealtered,increasedordeleted.WithoutwrittenapprovalofKEYS,thistestreportshallnotbecopiedexceptinfullandpublishedasadvertisement. ReportNo.:RKEYS251219056Date:Dec.26,2025Page 4 of 6 2.GENERALINFORMATION 2.1.GeneralDescriptionofE.U.T. ProductName YuefreshAirPurifier MainModel KJ380F-A01 Specification2.4GWIFI Mode802.11b/g/n20 Operatingfrequency2412-2462MHz NumberofChannel11Channels Antennainstallation PCBAntenna（declaredbymanufacturer） AntennaGain2.54dBi TypeofModulation DSSSfor802.11b; OFDMfor802.11g/n; Note:TheaboveEUT'sinformationwasdeclaredbymanufacturer.Pleaserefertothespecificationsoruser's manualformoredetaileddescription. GuangdongKEYSTestingTechnologyCo.,Ltd. Address:Building1,No.18,ShihuanRoad,DongchengSubdistrict,Dongguan,Guangdong,China Tel:+86-0769-22221088http://www.keys-lab.comE-mail:[email protected] Thisreportisonlyresponsibleforthetestresultsofthesamplessubmittedforinspection,andisnotresponsibleforthesourceofthesamplessubmittedforinspection. Thisreportshallnotbealtered,increasedordeleted.WithoutwrittenapprovalofKEYS,thistestreportshallnotbecopiedexceptinfullandpublishedasadvertisement. ReportNo.:RKEYS251219056Date:Dec.26,2025Page 5 of 6 3.RFEXPOSUREEVALUATION 3.1.Limits AccordingtoANSI/IEEEC95.1-1992,thecriterialistedinTableasbelowshallbeusedtoevaluatethe environmentalimpactofhumanexposuretoradiofre…

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AntennaSpecification Manufacture：TUYA ProductName：WBR3Antenna AntennaType：PCB TestDate：2021.05.20 Testedby：LongWang Approvedby：Licco Content 1.GeneralDescription.................................................................................1 2.TestConfigurations...................................................................................2 2.1TestEnvironment............................................................................2 2.2TestEquipment...............................................................................2 2.3TestPrinciple...................................................................................2 3.TestResults..............................................................................................3 3.1GainandEfficiency..........................................................................3 3.2RadiationPattern............................................................................4 4.AntennaDimensions................................................................................6 5.EUTPhoto................................................................................................6 6.TestSetupPhoto......................................................................................7 1 1.GeneralDescription ManufacturerHangzhouTuyaInformationTechnologyCo.,Ltd Address Room701,Building3,MoreCenter,No.87GuDunRoad, Hangzhou,Zhejiang,China TestLocation Room106,Building3,LetongSciencePark,No.500, QiuyiRoad,BinjiangDistrict,Hangzhou ProductNameWBR3Antenna Productmodel WBR3 AntennaType PCBAntenna TestItems Gain;Efficiency;RadiationPattern TestFrequency 2400-2500MHz TestStandard ANSI/IEEEStd149-1979 2 2.TestConfigurations 2.1TestEnvironment Temperature(°C)25 Humidity(%RH)60 AtmosphericPressure(kPa)100.5 2.2TestEquipment TestSystemTEM24Multi-probeMicrowaveChamber TestInstrumentAgilentE5071B 2.3TestPrinciple 3 3.TestResults 3.1GainandEfficiency Frequency(MHz)PeakGain(dBi)Efficiency(%) 2400 1.6252.29 2410 1.7152.17 2420 1.9353.14 2430 1.9854.16 2440 2.0057.62 2450 2.1759.64 2460 2.4561.55 2470 2.3860.64 2480 2.5462.86 2490 2.3059.85 2500 2.4960.41 4 3.2RadiationPattern Phi02D Phi902D 5 Theta902D 2480MHz3D 6 4.AntennaDimensions 5.EUTPhoto 7 6.TestSetupPhoto

FCCID:2BT6F-KJ380F-A01 1/13 AppendixA:TestResultsof2.4GWIFI ConductedOutputPower TestResult ConductedOutputPower ModeChannel Ant.0 (dBm) Limit (dBm) Result IEEE802.11b 111.71≤30PASS 612.04≤30PASS 1111.89≤30PASS IEEE802.11g 111.74≤30PASS 612.03≤30PASS 1112.47≤30PASS IEEE802.11n_20 111.76≤30PASS 611.87≤30PASS 1112.45≤30PASS FCCID:2BT6F-KJ380F-A01 2/13 99%Bandwidth TestResult ModeChannelAnt. CenterFrequency (MHz) 99%BW(MHz) IEEE802.11b 1 0 241214.011 6243714.010 11246214.011 IEEE802.11g 1241216.745 6243716.712 11246216.753 IEEE802.11n_20 1241217.892 6243717.872 11246217.878 TestGraphs IEEE802.11b_Channel1_20MHz_Antenna0IEEE802.11b_Channel6_20MHz_Antenna0 IEEE802.11b_Channel11_20MHz_Antenna0IEEE802.11g_Channel1_20MHz_Antenna0 FCCID:2BT6F-KJ380F-A01 3/13 IEEE802.11g_Channel6_20MHz_Antenna0IEEE802.11g_Channel11_20MHz_Antenna0 IEEE802.11n_Channel1_20MHz_Antenna0IEEE802.11n_Channel6_20MHz_Antenna0 IEEE802.11n_Channel11_20MHz_Antenna0 FCCID:2BT6F-KJ380F-A01 4/13 6dBBandwidth TestResult ModeChannelAnt. Center Frequency (MHz) 6dBBandwidth (MHz) Limit (MHz) Result IEEE802.11b 1 0 24129.169 ≥0.5 PASS 624379.171PASS 1124629.172PASS IEEE802.11g 1241216.39PASS 6243716.39PASS 11246216.40PASS IEEE802.11n_20 1241217.62PASS 6243717.62PASS 11246217.61PASS TestGraphs IEEE802.11b_Channel1_20MHz_Antenna0IEEE802.11b_Channel6_20MHz_Antenna0 IEEE802.11b_Channel11_20MHz_Antenna0IEEE802.11g_Channel1_20MHz_Antenna0 FCCID:2BT6F-KJ380F-A01 5/13 IEEE802.11g_Channel6_20MHz_Antenna0IEEE802.11g_Channel11_20MHz_Antenna0 IEEE802.11n_Channel1_20MHz_Antenna0IEEE802.11n_Channel6_20MHz_Antenna0 IEEE802.11n_Channel11_20MHz_Antenna0 FCCID:2BT6F-KJ380F-A01 6/13 ConductedSpurious&BandEdgeEmission TestResult ModeChannelAnt. OOB Emission Frequency (MHz) OOB Emission Level (dBm) Limit (dBm) OverLimit (dB) Result IEEE802.11b 1 0 2398.66-45.925-20.27-25.655PASS 2400.00-47.119-20.27-26.849PASS 24788.4-44.557-20.27-24.287PASS 624991.3-44.331-19.94-24.391PASS 11 2483.50-49.178-19.96-29.218PASS 24950.7-44.473-19.96-24.513PASS IEEE802.11g 1 2400.00-40.695-29.32-11.375PASS 24885.1-44.349-29.32-15.029PASS 624998.1-44.059-28.95-15.109PASS 11 2483.50-49.440-28.47-20.970PASS 24838.3-44.559-28.47-16.089PASS IEEE 802.11n_20 1 2400.00-40.131-28.09-12.041PASS 24895.8-44.514-28.09-16.424PASS 624375.8-44.238-29.01-15.228PASS 11 2483.50-49.618-28.22-21.398PASS 24780.9-44.556-28.22-16.336PASS Note:inputcompensationcoeffcient(dB)=CableLoss(dB) TestGraphs In-BandReferenceLevel IEEE802.11b_Channel1_20MHz_Antenna0 OutOfBandEmission IEEE802.11b_Channel1_20MHz_Antenna0 30.0MHz-25000.0MHz IEEE802.11b_Channel1_20MHz_Antenna0 In-BandReferenceLevel IEEE802.11b_Channel6_20MHz_Antenna0 FCCID:2BT6F-KJ380F-A01 7/13 30.0MHz-25000.0MHz IEEE802.11b_Channel6_20MHz_Antenna0 In-BandReferenceLevel IEEE802.11b_Channel11_20MHz_Antenna0 OutOfBandEmission IEEE802.11b_Channel11_20MHz_Antenna0 30.0MHz-25000.0MHz IEEE802.11b_Channel11_20MHz_Antenna0 In-BandReferenceLevel IEEE802.11g_Channel1_20MHz_Antenna0 OutOfBandEmission IEEE802.11g_Channel1_20MHz_Antenna0 30.0MHz-25000.0MHz IEEE802.11g_Channel1_20MHz_Antenna0 In-BandReferenceLevel IEEE802.11g_Channel6_20MHz_Antenna0 FCCID:2BT6F-KJ380F-A01 8/13 30.0MHz-25000.0MHz IEEE802.11g_Channel6_20MHz_Antenna0 In-BandReferenceLevel IEEE802.11g_Channel11_20MHz_Antenna0 OutOfBandEmission IEEE802.11g_Channel11_20MHz_Antenna0 30.0MHz-25000.0MHz IEEE802.11g_Channel11_20MHz_Antenna0 In-BandReferenceLevel IEEE802.11n_Channel1_20MHz_Antenna0 OutOfBandEmission IEEE802.11n_Channel1_20MHz_Antenna0 30.0MHz-25000.0MHz IEEE802.11n_Channel1_20MHz_Antenna0 In-BandReferenceLevel IEEE802.11n_Channel6_20MHz_Antenna0 FCCID:2BT6F-KJ380F-A01 9/13 30.0MHz-25000.0MHz IEEE802.11n_Channel6_20MHz_Antenna0 In-BandReferenceLevel IEEE802.11n_Channel11_20MHz_Antenna0 OutOfBandEmission IEEE802.11n_Channel11_20MHz_Antenna0 30.0MHz-25000.0MHz IEEE802.11n_Channel11_20MHz_Antenna0 FCCID:2BT6F-KJ380F-A01 10/13 DutyCycle TestResult ModeDataratesChannelAntenna OnTime (ms) Period (ms) Duty Cycle(%) Duty Cycle (linear) Duty Cycle Factor (dB) 1/T IEEE 802.11b 1Mbps 1 1 32.00032.00010010.00.0312 632.00032.00010010.00.0312 1132.00032.00010010.00.0312 IEEE 802.11g 6Mbps 110.00010.00010010.00.1000 610.00010.00010010.00.1000 1110.00010.00010010.00.1000 IEEE 802.11n_20 MCS0 110.00010.00010010.00.1000 610.00010.00010010.00.1000 1110.00010.00010010.00.1000 TestGraphs IEEE802.11b_20MHz_Channel1IEEE802.11b_20MHz_Channel6 IEEE802.11b_20MHz_Channel11IEEE802.11g_20MHz_Channel1 FCCID:2BT6F-KJ380F-A01 11/13 IEEE802.11g_20MHz_Channel6IEEE802.11g_20MHz_Channel11 IEEE802.11n_20MHz_Channel1IEEE802.11n_20MHz_Channel6 IEEE802.11n_20MHz_Channel11 FCCID:2BT6F-KJ380F-A01 12/13 PowerSpectralDensity TestResult ModeChannel PSD (dBm/3kHz) Ant.0 Limit (dBm/3kHz) Result IEEE802.11b 1-20.250 ≤8 PASS 6-19.980PASS 11-19.930PASS IEEE802.11g 1-23.390PASS 6-22.980PASS 11-22.610PASS IEEE802.11n_20 1-22.440PASS 6-23.300PASS 11-22.600PASS TestGraphs IEEE802.11b_Channel1_20MHz_Antenna0IEEE802.11b_Channel6_20MHz_Antenna0 IEEE802.11b_Channel11_20MHz_Antenna0IEEE802.11g_Channel1_20MHz_Antenna0 FCCID:2BT6F-KJ380F-A01 13/13 IEEE802.11g_Channel6_20MHz_Antenna0IEEE802.11g_Channel11_20MHz_Antenna0 IEEE802.11n_Channel1_20MHz_Antenna0IEEE802.11n_Channel6_20MHz_Antenna0 IEEE802.11n_Channel11_20MHz_Antenna0

TestReport ReportNo.:RKEYS251219055Date:Dec.26,2025Page 1 of 32 GuangdongKEYSTestingTechnologyCo.,Ltd. Address:Building1,No.18,ShihuanRoad,DongchengSubdistrict,Dongguan,Guangdong,China Tel:+86-0769-22221088http://www.keys-lab.comE-mail:[email protected] Thisreportisonlyresponsibleforthetestresultsofthesamplessubmittedforinspection,andisnotresponsibleforthesourceofthesamplessubmittedforinspection. Thisreportshallnotbealtered,increasedordeleted.WithoutwrittenapprovalofKEYS,thistestreportshallnotbecopiedexceptinfullandpublishedasadvertisement. FCCRFTESTREPORT For Product:YuefreshAirPurifier Model:KJ380F-A01 FCCID:2BT6F-KJ380F-A01 ReportNo.:RKEYS251219055 Issuedfor Xingmeiji(Wuhan)TradingCo.,Ltd 3rdFloor,Building4,No.777-1402,Guanggu3rdRoad,EastLakeHigh-Tech DevelopmentZone,WuhanCity,HubeiProvince,China Issuedby GuangdongKEYSTestingTechnologyCo.,Ltd. Building1,No.18,ShihuanRoad,DongchengSubdistrict,Dongguan,Guangdong, China ReportNo.:RKEYS251219055Date:Dec.26,2025Page 2 of 32 GuangdongKEYSTestingTechnologyCo.,Ltd. Address:Building1,No.18,ShihuanRoad,DongchengSubdistrict,Dongguan,Guangdong,China Tel:+86-0769-22221088http://www.keys-lab.comE-mail:[email protected] Thisreportisonlyresponsibleforthetestresultsofthesamplessubmittedforinspection,andisnotresponsibleforthesourceofthesamplessubmittedforinspection. Thisreportshallnotbealtered,increasedordeleted.WithoutwrittenapprovalofKEYS,thistestreportshallnotbecopiedexceptinfullandpublishedasadvertisement. TABLEOFCONTENTS 1.TESTCERTIFICATION..................................................................................................3 2.TESTSUMMARY............................................................................................................4 3.TESTSITE.......................................................................................................................5 3.1.TESTFACILITY.........................................................................................................................5 3.2.MEASUREMENTUNCERTAINTY............................................................................................5 3.3.TESTENVIRONMENTCONDITION.........................................................................................5 4.TESTEQUIPMENTLIST................................................................................................6 5.EUTDESCRIPTION........................................................................................................8 5.1.DESCRIPTIONOFTESTCONFIGURATION.............................................................................9 5.2.EQUIPMENTMODIFICATIONS................................................................................................9 6.TESTMETHODOLOGY................................................................................................10 6.1.EUTSYSTEMOPERATION.....................................................................................................10 6.2.CONFIGURATIONANDMODE..............................................................................................10 7.SETUPOFEQUIPMENTUNDERTEST.......................................................................11 7.1.DESCRIPTIONOFSUPPORTUNITS.......................................................................................11 7.2.BLOCKDIAGRAMOFEUTCONFIGURATION......................................................................11 7.3.EUTEXERCISESOFTWARE...................................................................................................11 8.TESTRESULTSANDMEASUREMENTDATA............................................................12 8.1.ANTENNAREQUIREMENT....................................................................................................12 8.2.MAXIMUMCONDUCTEDOUTPUTPOWER..........................................................................13 8.3.6DBBANDWIDTH...................................................................................................................14 8.4.POWERSPECTRALDENSITY................................................................................................15 8.5.OUTOFBANDCONDUCTEDEMISSIONS.............................................................................16 8.6.BANDEDGE............................................................................................................................18 8.7.SPURIOUSRADIATEDEMISSIONS.......................................................................................21 8.8.CONDUCTEDEMISSION........................................................................................................28 9.PHOTOGRAPHSOFEUTSET-UP................................................................................31 10.PHOTOGRAPHSOFTHEEUT...................................................................................32 ReportNo.:RKEYS251219055Date:Dec.26,2025Page 3 of 32 GuangdongKEYSTestingTechnologyCo.,Ltd. Address:Building1,No.18,ShihuanRoad,DongchengSubdistrict,Dongguan,Guangdong,China Tel:+86-0769-22221088http://www.keys-lab.comE-mail:[email protected] Thisreportisonlyresponsibleforthetestresultsofthesamplessubmittedforinspection,andisnotresponsibleforthesourceofthesamplessubmittedforinspection. Thisreportshallnotbealtered,increasedordeleted.WithoutwrittenapprovalofKEYS,thistestreportshallnotbecopiedexceptinfullandpublishedasadvertisement. 1.TESTCERTIFICATION Product: YuefreshAirPurifier Trademark: yuefresh MainModel: KJ380F-A01 Modellist: / Applicant: Xingmeiji(Wuhan)TradingCo.,Ltd Address: 3rdFloor,Building4,No.777-1402,Guanggu3rdRoad,EastLake High-TechDevelopmentZone,WuhanCity,HubeiProvince,China Manufacturer: WuhanYuefreshTechnologyCo.,Ltd. Address: 3rdFloor,Building4,No.777-1402,Guanggu3rdRoad,EastLake High-TechDevelopmentZone,WuhanCity,HubeiProvince,China SampleReceive Date ： Dec.19,2025 TestDate: Dec.19,2025~Dec.26,2025 Applicable Standards: FCC47,CFRPart15.247 Application Purpose OriginalGrant TheaboveequipmenthasbeentestedbyGuangdongKEYSTestingTechnologyCo.,L…

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FCCID:2BT6F-KJ380F-A01 Page 1 / 2 ConductedEmissiononACMains RadiatedSpuriousEmission,Below1GHz FCCID:2BT6F-KJ380F-A01 Page 2 / 2 RadiatedSpuriousEmission,Above1GHz