2AW74-AERIO-300Air Purifier

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Reference No.: WTN20F06038127W Page 1 of 3 Waltek Testing Group (Foshan) Co., Ltd. http://www.waltek.com.cn Picture 1 Picture 2 Reference No.: WTN20F06038127W Page 2 of 3 Waltek Testing Group (Foshan) Co., Ltd. http://www.waltek.com.cn Picture 3 Picture 4 Reference No.: WTN20F06038127W Page 3 of 3 Waltek Testing Group (Foshan) Co., Ltd. http://www.waltek.com.cn Picture 5 Picture 6

72±0.3 32±0.3 FCC ID:2AW74-AERIO-300

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Reference No.: WTN20F06038127-2W Page 1 of 2 Waltek Testing Group (Foshan) Co., Ltd. http://www.waltek.com.cn 1 MAXIMUM PERMISSIBLE EXPOSURE (MPE) 1.1 General Description of E.U.T Product Name ............................... : Air Purifier Model No. ..................................... : Aerio-300 FCC ID ........................................... : 2AW74-AERIO-300 Rated Voltage ............................... : AC 100-120V, 60Hz, 36W 1.2 Standard Applicable According to §1.1307(b)(1) and KDB 447498 D01 General RF Exposure Guidance v06, system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. (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 1500-100000 / / 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 1500-100000 / / 1 30 Note: f = frequency in MHz: * = Plane-wave equivalents power density Reference No.: WTN20F06038127-2W Page 2 of 2 Waltek Testing Group (Foshan) Co., Ltd. http://www.waltek.com.cn 1.3 MPE Calculation Method S = (30*P*G) / (377*R 2 ) S = power density (in appropriate units, e.g., mw/cm 2 ) P = power input to the antenna (in appropriate units, e.g., mw) G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor is normally numeric gain. R = distance to the center of radiation of the antenna (in appropriate units, e.g., cm) 1.4 MPE Calculation Result Prediction distance (mm) Prediction frequency (MHz) Antenna Gain (dBi) Numeric gain Maximum Tune- up output power (dBm) Maximum peak output power (mW) PD (mW/cm2) Limit (mW/cm2) >200 2412 3.0 2.0 17.18 52.240 0.020785 1.0 Result: Pass ======End of Report======

Waltek Testing Group (Foshan) Co., Ltd. http://www.waltek.com.cn Page 1 of 57 TEST REPORT Reference No. .................... : WTN20F06038127-1W FCC ID ................................ : 2AW74-AERIO-300 Applicant ............................ : Hong Kong Yunting Trading Co., Limited Address .............................. : Unit D, 16/F, One Capital Place, 18 Luard Road, Wan Chai, Hong Kong Manufacturer .................... : Qingdao Londs Environmental Technology Co.,Ltd Address .............................. : Eastward 100 meters of Dongwangtuan Community Chengyang District ,Qingdao,266109 ,China Product Name .................... : Air Purifier Model No. ........................... : Aerio-300 Standards........................... : FCC CFR47 Part 15 Subpart C (Section 15.247): 2019 Date of Receipt sample .... : 2020-06-18 Date of Test ....................... : 2020-08-27 Date of Issue ...................... : 2020-09-01 Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Testing Group (Foshan) Co., Ltd. Address: No.13-19, 2/F., 2nd Building, Sunlink International Machinery City, Chencun, Shunde District, Foshan, Guangdong, China Tel:+86-757-23811398 Fax:+86-757-23811381 E-mail:[email protected] Compiled by: Approved by: Roy Hong / Project Engineer Danny Zhou / Manager Reference No.: WTN20F06038127-1W Page 2 of 57 Waltek Testing Group (Foshan) Co., Ltd. http://www.waltek.com.cn 1 Revision History Test Report No. Date of Issue Description Status WTN20F06038127-1W 2020-09-01 Original Valid Reference No.: WTN20F06038127-1W Page 3 of 57 Waltek Testing Group (Foshan) Co., Ltd. http://www.waltek.com.cn 2 Contents Page 1 REVISION HISTORY ................................................................................................................................. 2 2 CONTENTS ............................................................................................................................................... 3 3 GENERAL INFORMATION ....................................................................................................................... 4 3.1 GENERAL DESCRIPTION OF E.U.T ................................................................................................... 4 3.2 TECHNICAL CHARACTERISTICS OF EUT ........................................................................................... 4 3.3 STANDARDS APPLICABLE FOR TESTING ............................................................................................ 4 3.4 TEST FACILITY ................................................................................................................................ 5 3.5 SUBCONTRACTED ........................................................................................................................... 5 3.6 ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................ 5 4 EUT SETUP AND TEST MODE ................................................................................................................ 6 5 EQUIPMENT USED DURING TEST ......................................................................................................... 7 5.1 EQUIPMENT LIST ............................................................................................................................. 7 5.2 SPECIAL ACCESSORIES AND AUXILIARY EQUIPMENT ......................................................................... 8 5.3 MEASUREMENT UNCERTAINTY ......................................................................................................... 8 6 SUMMARY OF TEST RESULT ................................................................................................................ 9 6.1 ANTENNA REQUIREMENT ............................................................................................................... 10 6.2 RF EXPOSURE REQUIREMENT ....................................................................................................... 11 6.3 RADIATED SPURIOUS EMISSIONS ................................................................................................... 12 6.4 POWER SPECTRAL DENSITY .......................................................................................................... 20 6.5 DTS BANDWIDTH .......................................................................................................................... 26 6.6 RF OUTPUT POWER ...................................................................................................................... 32 6.7 OUT OF BAND EMISSIONS .............................................................................................................. 39 6.8 CONDUCTED EMISSIONS................................................................................................................ 45 7 PHOTOGRAPHS TEST SETUP ............................................................................................................. 49 7.1 PHOTOGRAPHS - RADIATED EMISSION TEST SETUP ........................................................................ 49 7.2 PHOTOGRAPHS - CONDUCTED EMISSION TEST SETUP .................................................................... 50 8 PHOTOGRAPHS - CONSTRUCTIONAL DETAILS ............................................................................... 51 8.1 EUT - EXTERNAL VIEW ................................................................................................................. 51 8.2 EUT - INTERNAL VIEW ................................................................................................................... 54 Reference No.: WTN20F06038127-1W Page 4 of 57 Waltek T…

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Reference No.: WTN20F06038127W Page 1 of 2 Waltek Testing Group (Foshan) Co., Ltd. http://www.waltek.com.cn Test Setup For Radiated Emission (30MHz to 1GHz) Test Setup For Radiated Emission (Above 1GHz) Reference No.: WTN20F06038127W Page 2 of 2 Waltek Testing Group (Foshan) Co., Ltd. http://www.waltek.com.cn Test Setup For Conducted Emission