FCC ID: 2BDBO-S23J1 Air purifier

RF Exposure Considerations This device complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

Page 1 of 1 FCC ID: 2BDBO-S23J1 LABEL AND LOCATION Air purifier Model: S23J1 FCC ID: 2BDBO-S23J1

(Size: L4.0cm x 3.0cm) Label Location Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity

Zhongshan Yutian Electric Appliances Co.Ltd Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 U.S. Agent Designation 12/26/2023 Zhongshan Yutian Electric Appliances Co.Ltd acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought

(FCC ID: 2BDBO-S23J1):

Name and company of U.S. agent:

FCC US Agent, LLC Physical U.S. address of agent:

3722 Illinois Avenue, Saint Charles, IL, 60174, USA FRN of U.S. agent:

0033402884 Email address of U.S. agent:

Support@FCCUSAgent.com FCC US Agent, LLC acknowledges their obligation to accept service of process on behalf of Zhongshan Yutian Electric Appliances Co.Ltd. Zhongshan Yutian Electric Appliances Co.Ltd with the FRN 0034399808 accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature Jiaqi Zeng Manager Zhongshan Yutian Electric Appliances Co.Ltd Signature Tim Payne Manager FCC US Agent, LLC 5 0 V

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Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products:

FCC ID 2BDBO-S23J1 Model name S23J1, SJ2301, S23J1A, S23J1B For the products listed above, we request permanent confidentiality for all applicable exhibits as there are:

the Operational Description the Block Diagram the Schematics Part List Tune up Procedure The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-25 Name / Title: Jiaqi Zeng / Manager Company: Zhongshan Yutian Electric Appliances Co.Ltd Address: No.3 Floor3, Building No.56, Chuangyuan Road, Anle Village, Dongfeng Town, Zhongshan, Guangdong 528425, China Phone: +86-760-22788821 Fax: +86-760-22788821 E-Mail: jq13538686812@163.com

Covered Equipment Identification Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(ii) of the Commissions Rules (47 C.F.R.) we attest as follows:

We, applicant Company Name: Zhongshan Yutian Electric Appliances Co.Ltd Address:

No.3 Floor3, Building No.56, Chuangyuan Road, Anle Village, Dongfeng Town, Zhongshan, Guangdong 528425, China Phone: +86-760-22788821 certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-25 Name / Title: Jiaqi Zeng / Manager Company: Zhongshan Yutian Electric Appliances Co.Ltd Address: No.3 Floor3, Building No.56, Chuangyuan Road, Anle Village, Dongfeng Town, Zhongshan, Guangdong 528425, China Phone: +86-760-22788821 Fax: +86-760-22788821 E-Mail: jq13538686812@163.com

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commissions Rules (47 C.F.R.) we attest as follows for the product listed below:

FCC ID 2BDBO-S23J1 We, applicant Model name S23J1, SJ2301, S23J1A, S23J1B Company Name: Zhongshan Yutian Electric Appliances Co.Ltd Address:

No.3 Floor3, Building No.56, Chuangyuan Road, Anle Village, Dongfeng Town, Zhongshan, Guangdong 528425, China Phone: +86-760-22788821 certify that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-25 Name / Title: Jiaqi Zeng / Manager Company: Zhongshan Yutian Electric Appliances Co.Ltd Address: No.3 Floor3, Building No.56, Chuangyuan Road, Anle Village, Dongfeng Town, Zhongshan, Guangdong 528425, China Phone: +86-760-22788821 Fax: +86-760-22788821 E-Mail: jq13538686812@163.com

Zhongshan Yutian Electric Appliances Co.Ltd WIFI Channel 12 and 13 Declaration Letter We declare the equipment identified below with regards to Channel 12 and 13 capabilities for FCC ID: 2BDBO-S23J1 Declaration Product hardware does not have the capability to operate on Channel 12 and 13. Product hardware has the capability to operate on Channel 12 and 13. However, these two channels will be disabled via software and will not be accessible to user. Product hardware has the capability to operate on Channel 12 and 13. However, all the operated channels cant be changed in the RF parameter via software. All channels have complied with all of the requirements sets out in FCC Part 15.247. Product hardware has the capability to operate on WiFi Channel 12 and 13, and meets the requirements of KDB 594280 D01 v02r01. Please note:

1.) By default, this device operates in a mode that is compliant with the U.S. requirements. 2.) This device will also use supplemental information such as geo-

location data to determine that it is operating outside the U.S., if necessary, to change its power. Such supplemental data will be derived from the following:

Global Navigation Satellite System (GNSS)7 sensors in the device Mobile Country Code (MCC),8 or MCC with a Mobile Network code

(MNC), received from a CMRS9 carrier and received directly by a receiver on the device Country information derived from multiple adjacent access points (for example using IEEE Std 802.11d provisions) may be permitted on case-by-case basis Other suitable geo-location data based on IP addresses or other reliable source. Name / Title: Jiaqi Zeng / Manager Signature:

Phone: +86-760-22788821 Email: jq13538686812@163.com Date: 2023-12-25 Page 1 of 1 Rev.2.0

Zhongshan Yutian Electric Appliances Co.Ltd No.3 Floor3, Building No.56, Chuangyuan Road, Anle Village, Dongfeng Town, Zhongshan, Guangdong 528425, China Date: December 25, 2023 FCC ID: 2BDBO-S23J1 Model Number: S23J1, SJ2301, S23J1A, S23J1B To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Zhongshan Yutian Electric Appliances Co.Ltd hereby declare that our product (Air purifier) Model Number: S23J1, SJ2301, S23J1A, S23J1B board, Schematic, Hardware version, Software version, structure and internal photos are same, named and appearance differently due to marketing purposes. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely,

(Signed) Name/Title: Jiaqi Zeng / Manager Company: Zhongshan Yutian Electric Appliances Co.Ltd Address: No.3 Floor3, Building No.56, Chuangyuan Road, Anle Village, Dongfeng Town, Zhongshan, Guangdong 528425, China Tel: +86-760-22788821 Fax: +86-760-22788821 E-Mail: jq13538686812@163.com