2AX79FN2000MNebulizer

This device complies with part 15 of the FCC Rules. Opera- tion is subject to the following two conditions: (1) This device may not cause harmful inter- ference, and (2) this device must accept any interference received, including interfer- ence that may cause unde- sired operation. Any Changes or modifica- tions not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

05/10/2021 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: Mr Jon Wojculewicz Applicant: Convexity Scientific Address: 85 Willow Street Fox Building New Haven, CT 06511 United States TEL: (844) 359-7632

May 10， 2021 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (EUT NAME: Nebulizer /MODEL: fn2000m AND FCC ID: 2AX79FN2000M) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the (Block Diagrams, Schematics, Operational Descriptions) required to be submitted with this application be permanently withheld from public review. SPECIFY REASON FOR REQUEST (i.e. the above documents are company proprietary information that could never get into the possession of your competition). Please contact me if there is any information you may need. Sincerely, Signature: Name: Mr Jon Wojculewicz Applicant: Convexity Scientific Address: 85 Willow Street Fox Building New Haven, CT 06511 United States TEL: (844) 359-7632

Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 1 of 3 Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 2 of 3 Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 3 of 3

ID Label Location

Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 1 of 3 Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 2 of 3 Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 3 of 3 Antenna

Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 1 of 34 EUROFINS ELECTRICAL TESTING SERVICE (SHENZHEN) CO., LTD. RADIO TEST - REPORT FCC Compliance Test Report for Product name: Nebulizer Model name: fn2000m FCC ID: 2AX79FN2000M Test Report Number: EFGX20120195-IE-01-E01 General disclaimer: The above sample(s) and sample information was/were submitted and identified on behalf of the applicant. Eurofins assures objectivity and impartiality of the test, and fulfills the obligation of confidentiality for appli- cant’s commercial information and technical documents. Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 2 of 34 1 General Information 3 1.1 Notes 3 1.2 Testing laboratory 4 1.3 Details of applicant 4 1.4 Details of manufacturer 4 1.5 Application details 5 1.6 Test item 5 1.7 Test standards 5 2 Technical test 6 2.1 Summary of test results 6 2.2 Test environment 6 2.3 Measurement uncertainty 6 2.4 Test mode 7 2.5 Test equipment utilized 8 2.6 Auxiliary equipment used during test 9 2.7 Test software information 9 2.8 Test setup 10 2.9 Test results 12 3 Technical requirement and result 13 3.1 Conducted emission AC power port 13 3.2 20 dB bandwidth 16 3.3 Radiated emission 19 Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 3 of 34 1 General Information 1.1 Notes The results of this test report relate exclusively to the item tested as specified in chapter “Description of test item” and are not transferable to any other test items. Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. is not responsible for any generalisations and conclusions drawn from this report. Any modification of the test item can lead to invalidity of test results and this test report may therefore be not applicable to the modified test item. The test report may only be reproduced or published in full. Reproducing or publishing extracts of the report requires the prior written approval of the Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. This document is subject to the General Terms and Conditions and the Testing and Certification System of Eurofins Electrical Testing Service (Shenzhen) Co., Ltd., available on request or accessible at www.eurofins.com. Operator: 2021-05-13 Bruce Zheng / Project Engineer Date Eurofins-Lab. Name / Title Signature Technical responsibility for area of testing: 2021-05-13 Tom Tian / Supervisor Date Eurofins Name / Title Signature Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 4 of 34 1.2 Testing laboratory Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone : +86-755-82911867 Fax : +86-755-82910749 The Laboratory has passed the Accreditation by the American Association for Laboratory Accrediation (A2LA). The Accreditation number is 5376.01 The Laboratory has been listed by industry Canada to perform electromagnetic emission measurements, The CAB identifier is CN0088 1.3 Details of applicant Name : Convexity Scientific Address : 85 Willow Street Fox Building New Haven, CT 06511 United States Telephone : (844) 359-7632 Fax : N/A 1.4 Details of manufacturer Name : Comefresh Electronic Industry Co.,Ltd. Address : 1-4 Floor, The West Of Comefresh Building, No.35, Xiangyue Road, Torch Hi-Tech Industrial Zone, 361101, Xiang’an, Xiamen, Fujian, P.R. China Telephone : N/A Fax : N/A Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 5 of 34 1.5 Application details Date of receipt of application : 2020-12-30 Date of receipt of test item : 2021-04-01 Date of test : 2021-04-01 to 2021-04-28 Date of issue : 2021-05-13 1.6 Test item Product type : Nebulizer Model name : fn2000m Brand : N/A Serial number : N/A Ratings : (internal) Battery: DC 3.7V, Adapter: input120V/60Hz, Output DC 5V Test voltage : DC 3.7V FCC ID : 2AX79FN2000M Additional information : N/A RadioTechnical data Frequency range : 2402MHz – 2480MHz Radio Tech. : Bluetooth Low Energy Frequency channel : 40 Channels Modulation : GFSK Antenna type : PCB antenna Antenna gain : -1 dBi Radio module Type : BLE module Model : BMD-300 Manufacturer : Rigado 1.7 Test standards Test Standards FCC Part 15 Subpart C PART 15 - RADIO FREQUENCY DEVICES Subpart C - Intentional Radiators Test Method 1: ANSI C63.4-2014, American National Standard for Methods of Measurement of Radio-Noise Emis- sions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz. 2: ANSI C63.10-2013, American National Standard for Testing Unlicensed Wireless Devices. Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755…

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Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 1 of 2 Conducted emission test setup Radiated Emission test below 1GHz Test Report No.: EFGX20120195-IE-01-E01 Eurofins Electrical Testing Service (Shenzhen) Co., Ltd. 1st Floor, Building 2, Chungu, Meisheng Huigu Science and Technology Park, No. 83 Dabao Road, Bao'an District, Shenzhen. P.R.China. Telephone: +86-755-82911867, Fax : +86-755-82910749 Page 2 of 2 Radiated Emission test Above 1GHz