Test Report Guangzhou Quality Supervision And

Test Report

Test Report No.：轻委2020-05-0577 Applicant： Zhantuo Optical Lens Co.,Ltd. Sample Name： KN95 Face Mask Type and Specification： ZT-MSK01 Completion Date： 2020-05-21

Guangzhou Quality Supervision and Testing Institute (GQT) Important Statement 1. Guangzhou Quality Supervision and Testing Institute (GQT) is the products quality supervision and testing organization that is set up by the Government and in charge by Guangzhou

Administration for Market Regulation. GQT is a social public welfare institution that pro- viding technical support for the government to strengthen the market supervision and administration, and also accepting commissioned inspection.

2. GQT and the National Quality Supervision and Testing center (center) and the Products Quality Supervision and Testing Station (station) guarantee that the inspection is scien- tific, impartial and accurate and are responsible for the testing result and also keep con- fidentiality of the samples and technical information provided by the applicants.

3. Any report without the signatures of the tester, checker and approver, or altered, or without the special chapter for Inspection and Testing of the Institute (center/station), or without the special testing seal , will be taken as invalid. The test shall not be par- tial copied, picked up and tampered without the authorization of GQT (Center/ Station).

4. The entrusted testing is only valid to the provided samples.The applicant shall not use the inspection results without authorization of GQT (Center/ Station) for undue publicity.

5. The sample and relevant information provided by the applicant, GQT (Center/Station）is not responsible for its authenticity and integrity. 6. If there is any objection to the inspection report, it shall be submitted to GQT (Cen- ter/Station) within fifteen days since the report is received. It will not be accepted after the deadline.

Business Contact Food 020-83390395 020-83655806 020-83187077

Chemical Product 020-83186957 020-83193967 020-83392709 020-31002536

Light Industrial and 020-83354114 020-83398676 020-83183524 020-82022363 Packaging Products

Construction Material Fire Protection 020-83334528 020-82022335 020-83355302 020-83380817 Environmental Protection

Light Industrial Products 020-82022358 020-83398701 Electrical & Mechanical Equipments

Complaint Handling: Quality Assurance Review Department 020-83179105

Sample Returning: Sample Warehouse 020-83186557

Address: No.1-2, Zhujiang Road, Chaotian Industrial Area, Shilou, Panyu District, Guangzhou, Guangdong Province, PR China（Headquarters）. Zip code: 511447

No.38 Erma Road, Baqi, Yuexiu District, Guangzhou, Guangdong Province, PR China（Branch）. Zip code: 510110

Report Progress, True and False Inquiries Website: www.qmark.com.cn

Quick Response Code(QR Code): On the lower right corner of the report’s fist page Guangzhou Quality Supervision and Testing Institute (GQT) Test Report

№ 轻委2020-05-0577 Page 14of Production Date ---- Sample Name KN95 Face Mask Lot No. ------Trademark Expiration Date ---- ZT-MSK01 Type/Specification/Grade Contract No. ZJZ200513AYQ

Contract Applicant Test Category Applicant Zhantuo Optical Lens Co.,Ltd.

Sample Quantity 50 pieces

Manufacturer Zhantuo Optical Lens Co.,Ltd. Sampling Date 2020-05-13

Sampling Way Submit by applicant Completion Date 2020-05-21

GB 2626-2006 Respiratory protective equipment - Non-powered air-purifying particle respirator Test Reference

GB 2626-2006 Respiratory protective equipment - Non-powered air-purifying particle respirator Judge Reference

Condition of Sample Normal Test Environment As the requirements of test reference.

The test items meet the requirements of GB 2626-2006 (KN 95). Test Conclusion

Date of Issue: 2020-05-21 Report is invalid if not sealed.

Remarks ━━━━━━━━━━━━━━━━━━━

Approved by Verified by Tested by

(----/2020.05.22) Address: No.1 Zhujiang Road, Chaotian Industrial Area, Shilou, Panyu District, Guangzhou, Guangdong, Anticounterfeiting Code: A88688B9C19FD711 Guangzhou Quality Supervision and Testing Institute (GQT) Test Report № 轻委2020-05-0577 Page 2 of 4

Reference Requirement Test Results No. Test Items Unit Assess ------1 General --- The material should meet the Meet the requirements Pass requirements following requirements: A) The material directly in contact with the face should be harmless to the skin. B) The filter material should be harmless to the human body. C) The material used should have sufficient strength and should not be damaged or deformed during the period of normal using.

The structural or design should meet Meet the requirements the following requirements: A) It should not be easy to cause structural damage, and the design, composition and installation of components should not pose any danger to users. B) The design of the head harness should be adjustable, easy to wear and remove. It should be able to fix the mask on the face firmly , and there should be no obvious pressure or tenderness when the mask was worn. The head harness’s design of replaceable half face-piece and full face-piece should be replaceable. C) It should have as a smaller dead space and a larger field of vision as possible; D) When worn, the lens of the full face-piece should not appear fogging and other conditions that affect vision. E) Respiratory protective equipment with replaceable filter elements, exhalation valves, inhalation valves and head harness should be designed to be easily replaced, and which can be convenient for the user to check the air tightness between the mask and face at any time. F) Breathing hoses should not restrict head or other movements, should not affect the tightness of the face-piece, and should not restrict or block airflow. G) The structure of the disposable face-piece should be able to ensure the close contact with the face, and there should be no deformation during the period of using.

Approved by Verified by Tested by

Reference Requirement Test Results No. Test Items Unit Assess ------2 Appearance --- The mask should not be damaged, 1#：Meet the requirements Pass deformed and have obvious other defects. The material and structure 2#：Meet the requirements of the components should be able to withstand the normal use conditions and the temperature, humidity and mechanical shocks that may be encountered. The head harness should be adjustable and whose design of the replaceable face-piece should be replaceable. The lenses of the full face-piece should not cause fogging and other conditions that affect vision when worn. After temperature and humidity conditioning and mechanical strength conditioning, components should not fall off, be damaged and deformed. 3 Filter % Testing by sodium chloride particles Samples as received Pass efficiency 1#：98.0 2#：97.8 KN95：≥95.0 3#：98.1 4#：97.2 5#：97.6 6#：98.0 7#：97.9 8#：97.6 9#：98.1 10#：97.7 Samples after temperature and humidity conditioning 11#：97.5 12#：96.0 13#：96.9 14#：97.0 15#：96.6

4 Breathing Pa The total inhalation resistance of The total inhalation Pass resistance each sample should not be more than resistance: 350 Pa, and the total exhalation Samples as received resistance should not be more than 1#：65 2#：68 250 Pa. Samples after temperature and humidity conditioning 3#：70 4#：70 The total exhalation resistance: Samples as received 1#：73 2#：77 Samples after temperature and humidity conditioning 3#：72 4#：76

5 Head harness --- The head harness, buckle and Sample as received Pass adjustment components of each 1#：Meet the requirements disposable face-piece should not be Sample after temperature slipped or broken after bearing the and humidity conditioning pressure of 10N for 2#：Meet the requirements 10 seconds.

Approved by Verified by Tested by

(----/2020.05.22) Address: No.1 Zhujiang Road, Chaotian Industrial Area, Shilou, Panyu District, Guangzhou, Guangdong, Anticounterfeiting Code: A88688B9C19FD711