2ARBY-CORE-200SBTrue HEPA Air Purifier

Arovastcorporation CoveredEquipmentCertificationAttestationLetter 4/23/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2ARBY-CORE-200SB Arovastcorporation(“theapplicant”)certifiesthattheequipmentforwhichauthorization issoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. Signed: Printedname:ChrisHuang Title:SrManager,ProductCompliance CompanyName:Arovastcorporation Date:4/23/2023

Arovastcorporation * theapplicantmustdesignateacontactlocatedintheUnitedStatesforpurposesofactingasthe applicant’sagentforserviceofprocess,regardlessofwhethertheapplicantisadomesticorforeign entity.AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforserviceofprocess. U.S.AgentDesignationforServiceofProcess- CertificationAttestationLetter 4/23/2023 TO:FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 ATTN.:ReviewingEngineer FCCID:2ARBY-CORE-200SB FRNofapplicant:0027859651 Persection2.911(d)(7)oftheFCCrules,Arovastcorporation(“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisdesignatedtothefollowingU.S.agent*for serviceofprocess: CompanyName:Arovastcorporation FCCRegistrationNumber(FRN):0027859651 PhysicalU.S.CompanyAddress:1202NMillerSt.,SuiteA,Anaheim,CA92806,USA ContactPerson:ChrisHuang AgentEmailAddress:[email protected] Theabovecontactpersonacceptstheobligationforserviceofprocess. Theapplicantacceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. ApplicantSigned:AgentSigned(ifdifferentfromApplicant): Signed:Signed: Printedname:ChrisHuangPrintedname:ChrisHuang Title:SrManager,ProductComplianceTitle:SrManager,ProductCompliance CompanyName:ArovastcorporationCompanyName:Arovastcorporation Date:4/23/2023Date:4/23/2023

Arovastcorporation CoveredEquipmentCertificationAttestationLetter 4/23/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2ARBY-CORE-200SB Arovastcorporation(“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredListasanentityproducing “covered”equipment. Signed: Printedname:ChrisHuang Title:SrManager,ProductCompliance CompanyName:Arovastcorporation Date:4/23/2023

DATE:4/23/2023 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointESTTechnologyCo.,Ltd.Address:Chilingxiang,Qishantou, Santun,Houjie,Dongguan,Guangdong,Chinatoactasouragentinthepreparationof thisapplicationforequipmentcertification.Icertifythatsubmitteddocumentsproperly describethedeviceorsystemforwhichequipmentcertificationissought.Ialsocertifythat eachunitmanufactured,importedormarketed,asdefinedintheFederalCommunications Commission’sregulationswillhaveaffixedtoitalabelidenticaltothatsubmittedfor approvalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithArovastcorporationAddress:1202NMillerSt.,Suite A,Anaheim,CA92806,USA <Signature> Name：ChrisHuang Title：SrManager,ProductCompliance ApplicantCompany ： Arovastcorporation

DATE:4/23/2023 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2ARBY-CORE-200SB ProductName:TrueHEPAAirPurifier RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommissionsrules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: Schematics  Blockdiagram Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. <Signature> Name：ChrisHuang Title：SrManager,ProductCompliance Company：ArovastCorporation

Arovastcorporation I,theundersigned,Chrishuang: Thefollowingmodelshavethesametechnicalconstructionincludingcircuitdiagram,PCB Layout,componentsandcomponentlayout,allelectricalconstructionandmechanical construction,exceptthedifferentmodelnameandcolor. 1)ModelNo.:Core200S 2)ModelNo.:LAP-C201S-AUSR 3)ModelNo.:LAP-C201S-XXXY(“-”Followedbythreeorfourcharacters,differentiatedby colorandmodelnumber) FCCID:2ARBY-CORE-200SB Sincerely, Client’ssignature: Client’sname/title:ChrisHuang/SrManager,ProductCompliance Contactinformation/address:1202NMillerSt.,SuiteA,Anaheim,CA92806,USA Telephone:7145091019 FaxNo.:N/A

External Photos M/N: Core 200S External Photos M/N: Core 200S External Photos M/N: Core 200S

Label Location

Internal Photos M/N: Core 200S Internal Photos M/N: Core 200S Internal Photos M/N: Core 200S Internal Photos M/N: Core 200S Antenna Internal Photos M/N: Core 200S

FCC ID: 2ARBY-CORE-200SB EST Technology Co. ,Ltd Report No. ESTE-R2303071 Page 1 of 5 FCC 47 CFR MPE REPORT Arovast corporation True HEPA Air Purifier Model Number: Core 200S Additional Model: LAP-C201S-AUSR, LAP-C201S-XXXY “-”Followed by three or four characters, differentiated by color and model number FCC ID: 2ARBY-CORE-200SB Applicant: Arovast corporation Address: 1202 N Miller St. Suite A, Anaheim, California 92806, United States Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2303071 Date of Test: Feb. 18, 2023~Mar. 08, 2023 Date of Report: Mar. 09, 2023 FCC ID: 2ARBY-CORE-200SB EST Technology Co. ,Ltd Report No. ESTE-R2303071 Page 2 of 5 Maximum Permissible Exposure 1. Applicable Standards Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2m normally can be maintained between the user and the device. 1.1. Limits for Maximum Permissible Exposure (MPE) (a) Limits for Occupational/Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times ︱E︱ 2 ,︱H︱ 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-10000 5 6 (b) Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times ︱E︱ 2 ,︱H︱ 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-10000 1.o 30 Note: f=frequency in MHz; *Plane-wave equivalent power density FCC ID: 2ARBY-CORE-200SB EST Technology Co. ,Ltd Report No. ESTE-R2303071 Page 3 of 5 1.2. MPE Calculation Method E (V/m) = d G × P × 30 Power Density: Pd (W/m 2 ) = 377 E 2 E = Electric Field (V/m) P = Peak RF output Power (W) G = EUT Antenna numeric gain (numeric) d = Separation distance between radiator and human body (m) The formula can be changed to Pd = 2 d × 377 G × P × 30 From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained FCC ID: 2ARBY-CORE-200SB EST Technology Co. ,Ltd Report No. ESTE-R2303071 Page 4 of 5 2. Conducted Power Result Mode Frequency (MHz) Peak output power (dBm) Peak output power (mW) GFSK 2402 2.19 1.656 2441 5.63 3.656 2480 8.29 6.745 π/4-DQPSK 2402 4.31 2.698 2441 7.81 6.039 2480 10.45 11.092 8-DPSK 2402 4.69 2.944 2441 8.33 6.808 2480 10.85 12.162 BLE 1M 2402 2.26 1.683 2440 5.87 3.864 2480 8.18 6.577 IEEE 802.11b 2412 15.34 34.198 2437 17.52 56.494 2462 21.00 125.893 IEEE 802.11g 2412 14.66 29.242 2437 17.05 50.699 2462 20.49 111.944 IEEE 802.11n HT20 2412 14.66 29.242 2437 17.04 50.582 2462 20.51 112.460 IEEE 802.11n HT40 2422 15.03 31.842 2437 16.72 46.989 2452 18.59 72.277 FCC ID: 2ARBY-CORE-200SB EST Technology Co. ,Ltd Report No. ESTE-R2303071 Page 5 of 5 3. Calculated Result and Limit Mode Peak output power (dBm) Target power （dBm） MAX Target power （dBm） Antenna gain Power Density (S) (mW /cm2) Limited of Power Density (S) (mW /cm 2 ) Test Result (dBi) (Linear) 2.4G Band GFSK 8.29 8±1 9 3.76 2.377 0.0038 1 Complies π /4-DQPSK 10.45 10±1 11 3.76 2.377 0.0060 1 Complies 8-DPSK 10.85 10±1 11 3.76 2.377 0.0060 1 Complies BLE 1M 8.18 8±1 9 3.76 2.377 0.0038 1 Complies IEEE 802.11b 21.00 21±1 22 3.76 2.377 0.0749 1 Complies IEEE 802.11g 20.49 20±1 21 3.76 2.377 0.0595 1 Complies IEEE 802.11n HT20 20.51 20±1 21 3.76 2.377 0.0595 1 Complies IEEE 802.11n HT40 18.59 18±1 19 3.76 2.377 0.0376 1 Complies End of Test Report

FCC ID: 2ARBY-CORE-200SB EST Technology Co., Ltd Report No. ESTE-R2303068 Page 1 of 80 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of Arovast corporation True HEPA Air Purifier Model Number: Core 200S Additional Model: LAP-C201S-AUSR, LAP-C201S-XXXY “-”Followed by three or four characters, differentiated by color and model number FCC ID: 2ARBY-CORE-200SB Applicant : Arovast corporation Address: 1202 N Miller St. Suite A, Anaheim, California 92806, United States Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2303068 Date of Test: Feb. 18, 2023~Mar. 08, 2023 Date of Report: Mar. 09, 2023 FCC ID: 2ARBY-CORE-200SB EST Technology Co., Ltd Report No. ESTE-R2303068 Page 2 of 80 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION......................................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................. 5 1.1. Description of Device (EUT) ........................................................................................................... 5 1.2. Antenna Information ........................................................................................................................ 5 1.3. Information of RF Cable .................................................................................................................. 5 2. SUMMARY OF TEST ......................................................................................................................... 6 2.1. Summary of test result ...................................................................................................................... 6 2.2. Test Facilities ................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................. 8 2.4. Assistant equipment used for test ..................................................................................................... 8 2.5. Block Diagram ................................................................................................................................. 8 2.6. Test mode ......................................................................................................................................... 9 2.7. Channel List ................................................................................................................................... 10 2.8. Power Setting of Test Software ...................................................................................................... 10 2.9. Test Equipment ............................................................................................................................... 11 3. MAXIMUM PEAK OUTPUT POWER ................................................................................................. 13 3.1. Limit ............................................................................................................................................... 13 3.2. Test Setup ....................................................................................................................................... 13 3.3. Spectrum Analyzer Setting ............................................................................................................. 13 3.4. Test Procedure ................................................................................................................................ 13 3.5. Test Result ...................................................................................................................................... 13 4. 20 DB BANDWIDTH ....................................................................................................................... 14 4.1. Limit ............................................................................................................................................... 14 4.2. Test Setup ....................................................................................................................................... 14 4.3. Spectrum Analyzer Setting ............................................................................................................. 14 4.4. Test Procedure ................................................................................................................................ 14 4.5. Test Result ...................................................................................................................................... 14 5. CARRIER FREQUENCY SEPARATION .............................................................................................. 15 5.1. Limit ............................................................................................................................................... 15 5.2. Test Setup ....................................................................................................................................... 15 5.3. Spectrum Analyzer Setting ............................................................................................................. 15 5.4. Test Procedure ................................................................................................................................ 15 5.5. Test Result ...................................................................................................................................... 15 6. NUMBER OF HOPPING CHANNEL .................................................................................................. 16 6.1. Limit ............................................................................................................................…

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OTA TEST REPORT Applicant Espressif Systems Product ESP ANT B Model ESP ANT B Report No. Y2209A0967-T1 Issue Date October 8, 2022 TA Technology (Shanghai) Co., Ltd. tested the above equipment in accordance with the requirements in ANSI/IEEE Std 149-2008. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. Prepared by: Xu Ying Approved by: Xu Kai TA Technology (Shanghai) Co., Ltd. Building 3, No.145, Jintang Rd, Tangzhen Industry Park, Pudong Shanghai, China TEL: +86-021-50791141/2/3 FAX: +86-021-50791141/2/3-8000 OTA Test Report Report No: Y2209A0967-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 2 of 16 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. TABLE OF CONTENTS 1. General Information ....................................................................................................................... 3 1.1. Notes of the Test Report ................................................................................................... 3 1.2. Testing laboratory .............................................................................................................. 3 1.3. Laboratory Environment .................................................................................................... 3 2. General Description of Equipment under Test ............................................................................... 4 2.1. Applicant Information ......................................................................................................... 4 2.2. Manufacturer Information .................................................................................................. 4 2.3. Information of EUT ............................................................................................................ 4 2.4. Test Date ........................................................................................................................... 4 2.5. Applied Standards ............................................................................................................. 5 3. Test Conditions .............................................................................................................................. 6 3.1. Test Configuration ............................................................................................................. 6 3.2. Test Measurement ............................................................................................................. 6 4. Test Results ................................................................................................................................... 7 4.1. Gain and Efficiency ............................................................................................................ 7 4.2. Voltage Standing Wave Ratio (VSWR) .............................................................................. 8 4.3. Antenna S11 ...................................................................................................................... 9 5. Test Equipment List ..................................................................................................................... 10 AP PEN DIX A: 2-D Pattern Plots ............................................................................................................. 11 APPENDIX B: The EUT Appearance and Test Configuration ............................................................. 15 B.1 EUT Appearance ................................................................................................................. 15 B.2 Test Configuration .............................................................................................................. 16 OTA Test Report Report No: Y2209A0967-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 3 of 16 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 1. General Information 1.1. Notes of the Test Report This report shall not be reproduced in full or partial, without the written approval of TA technology (shanghai) co., Ltd.The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein .Measurement Uncertainties were not taken into account and are published for informational purposes only. This report is written to support regulatory compliance of the applicable standards stated above. This report must not be used by the client to claim product certification, approval, or endorsement by any government agencies. 1.2. Testing laboratory Company: TA Technology (Shanghai) Co., Ltd. Address: Building 3, No.145, Jintang Rd, Tangzhen Industry Park, Pudong Shanghai, China City: Shanghai Post code: 201201 Country: P. R. China Contact: Xu Kai Telephone: +86-021-50791141/2/3 Fax: +86-021-50791141/2/3-8000 Website: http://www.ta-shanghai.com E-mail: [email protected] 1.3. Laboratory Environment Temperature Min. =19°C，Max. = 25°C Relative humidity Min. =40%，Max. =72% Shield effect 0.7-6GHz > 100dB Ground resistance <0.5Ω OTA Test Report Report No: Y2209A0967-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 4 of 16 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 2. General Description of Equipment under Test 2.1. Applicant Information Company: Espressif Systems Address: #101, Block 2, 690 Bibo Road, Zhang Jiang High-Tech Park, Shanghai, China 2.2. Manufacturer Information Company: Espressif Systems Address: #101, Block 2, 690 Bibo Road, Zhang Jiang High-Tech Park, Shanghai, China 2.3. Information of EUT General information EUT Description Product Name: ESP ANT B Model ESP ANT B HW Version: / SW Version: / Antenna Type: PCB Antenna Antenna Size 18mm *6.19mm *0.8mm Antenna Manufacturer: Espressif Systems Test Fre…

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Conducted Test Radiated Test (30-1000 MHz) Radiated Test (Above 1GHz)