TEST REPORT: CHM14-05-CHY

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A TEST REPORT: 7191100863-CHM14-05-CHY Date: Tel: +65 68851291 Fax: +65 67784301 Client s Ref: Email: huayi.chen@tuv-sud-psb.

In addition, this report is governed by the terms set out within this report.

DESCRIPTION OF IONISER The photograph and specifications of Naturion Ioniser NA50 were listed in Annex A. METHOD OF TEST The Naturion Ioniser NA50 was tested in a 1 m 3 chamber (Annex B).

1 A TEST REPORT: CHM14-05-CHY Date: Tel: Fax: Client s Ref: huayi.chen@tuv-sud-psb.sg Note: This report is issued subject to the Testing and Certification Regulations of the TÜV SÜD Group and the General Terms and Conditions of Business of TÜV SÜD PSB Pte Ltd. In addition, this report is governed by the terms set out within this report. SUBJECT Naturion Ioniser NA50 Performance of Ozone Emission CLIENT Serumi International Private Limited 36 Armenian Street #02-02 Singapore Attn: Mr Sean Gan PY TEST DATE 16 Mar 2015 DESCRIPTION OF IONISER The photograph and specifications of Naturion Ioniser NA50 were listed in Annex A. METHOD OF TEST The Naturion Ioniser NA50 was tested in a 1 m 3 chamber (Annex B). The Naturion Ioniser NA50 was fixed on a Fan. The Fan generates wind through a short channel. The Naturion Ioniser NA50 was then fixed on the end of channel. An ozone sensor was installed in front of the Naturion Ioniser NA50 with a distance of 10 cm to monitor ozone concentration. Ozone concentration was recorded by every 1 minute during a 30 minutes period. Laboratory: TÜV SÜD PSB Pte. Ltd. No.1 Science Park Drive Singapore Phone : Fax : testing@tuv-sud-psb.sg Co. Reg : R Regional Head Office: TÜV SÜD Asia Pacific Pte. Ltd. 3 Science Park Drive, #04-01/05 The Franklin, Singapore

2 RESULTS Table 1 Monitored ozone concentrations in background and during Naturion Ioniser NA50 operation Time, Minutes Ozone, ppm background Ozone, ppm Naturion Ioniser NA50 operated NEA guidelines for Good Indoor Air Quality in Office Premises", Ozone Accepted Limit ppm SS554:2009 Indoor Air Quality for Air-conditioned Buildings, Table 2, Ozone Accepted Limit, ppm 0 ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < ND ND < 0.05 < 0.1 Remark: ND not detected (detection limit 0.01 ppm) Page 2 of 6

SUMMARY The NEA guidelines and SS554 were referred to evaluate ozone emission from Naturion Ioniser NA50. Ozone was not detected at the detection limit of 0.

The NA50 ozone emission meets the ozone accepted limit of less than 0.

3 SUMMARY The NEA guidelines and SS554 were referred to evaluate ozone emission from Naturion Ioniser NA50. Ozone was not detected at the detection limit of 0.01 ppm during Naturion Ioniser NA50 s 30 minutes operation time at a distance of 10 cm away from the ioniser. The NA50 ozone emission meets the ozone accepted limit of less than 0.05 ppm in NEA guidelines for Good Indoor Air Quality in Office Premises" and ozone accepted limit of less than 0.1 ppm in Table 2 of Singapore Standard SS554:2009 Indoor Air Quality for Air conditioned Buildings. DR. YANG LEI EXECUTIVE CONSULTANT DR CHEN HUAYI ASSISTANT VICE PRESIDENT CHEMICAL CENTRE Page 3 of 6

Annex A: Naturion Ioniser NA50 Specifications (Provided by Serumi International Private Limited) Name Naturion Ioniser NA50 Photograph Negative ions count Power supply Net

4 Annex A: Naturion Ioniser NA50 Specifications (Provided by Serumi International Private Limited) Name Naturion Ioniser NA50 Photograph Negative ions count Power supply Net Weight Unit dimensions Unit with clip dimensions Packaging dimensions Max pcs/cm 3 (at 100 cm distance) DC 12V 43 g mm mm mm Page 4 of 6

5 Annex B: Schematic of test chamber Ozone meter NA50 Wind direction Figure Schematic layout of the test chamber (1 1 1 meter) Page 5 of 6

6 Please note that this Report is issued under the following terms : 1. This report applies to the sample of the specific product/equipment given at the time of its testing/calibration. The results are not used to indicate or imply that they are applicable to other similar items. In addition, such results must not be used to indicate or imply that TÜV SÜD PSB approves, recommends or endorses the manufacturer, supplier or user of such product/equipment, or that TÜV SÜD PSB in any way guarantees the later performance of the product/equipment. Unless otherwise stated in this report, no tests were conducted to determine long term effects of using the specific product/equipment. 2. The sample/s mentioned in this report is/are submitted/supplied/manufactured by the Client. TÜV SÜD PSB therefore assumes no responsibility for the accuracy of information on the brand name, model number, origin of manufacture, consignment or any information supplied. 3. Nothing in this report shall be interpreted to mean that TÜV SÜD PSB has verified or ascertained any endorsement or marks from any other testing authority or bodies that may be found on that sample. 4. This report shall not be reproduced wholly or in parts and no reference shall be made by the Client to TÜV SÜD PSB or to the report or results furnished by TÜV SÜD PSB in any advertisements or sales promotion. 5. Unless otherwise stated, the tests were carried out in TÜV SÜD PSB Pte Ltd, No.1 Science Park Drive Singapore July 2011 Page 6 of 6

TEST REPORT: CHM14-07-CHY

TEST REPORT: CHM14-07-CHY A TEST REPORT: 7191100863-CHM14-07-CHY Date: Tel: +65 68851291 Fax: +65 67784301 Client s Ref: Email: huayi.chen@tuv-sud-psb.sg Note: This report is issued subject to the Testing and Certification Regulations