2BABQSM-2B-1Smart Air Filter System

Attestation Letter Date: 4/23/2026 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Woosh Air Inc. certifies that the Smart Air Filter, model SM-2B-1, FCC ID: 2BABQSM-2B-1, does not support Channel 39 (2480 MHz) in BLE 2M mode because it is disabled by firmware. Sincerely, Signature Winston Mok CEO, Woosh Air Inc. [email protected] 415-579-7274 2606 21st St San Francisco, CA 94110 United States

CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 9/23/2025 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: 2BABQSM-2B-1 Woosh Air Inc. (“the applicant”) certifies 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 and the product does not use Kapersky software information. Sincerely, Winston Mok CEO, Woosh Air Inc. [email protected] 415-579-7274 2606 21st St San Francisco, CA 94110 United States

FCC Authorization 10/15/2025 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We Woosh Air Inc. the undersigned, Hereby authorizes Bay Area Compliance Laboratories Corp. to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratories Corp. on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Winston Mok CEO, Woosh Air Inc. [email protected] 415-579-7274 2606 21st St San Francisco, CA 94110 United States QA-FR-170-B 7/29/2014

Contains IC: 5123A-917AC FCC ID: 2BABQSM-2B-1 Model: SM-2B-1 Woosh Air Inc.

Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 19 of 102 FCC Part 15C Test Report 5 FCC §2.1091, FCC §15.247(i) – RF Exposure 5.1 Applicable Standards According to FCC §15.247(i), Radio frequency devices operating under the provisions of this part are subject to the radio frequency radiation exposure requirements specified in §§ 1.1307(b), 1.1310, 2.1091, and 2.1093 of this chapter, as appropriate. Applications for equipment authorization of mobile or portable devices operating under this section must contain a statement confirming compliance with these requirements. Technical information showing the basis for this statement must be submitted to the Commission upon request. According to FCC §2.1091, systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minutes) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 * (100) 30 1.34-30 824/f 2.19/f * (180/f 2 ) 30 30-300 27.5 0.073 0.2 30 300-1500 / / f/1500 30 1500-100,000 / / 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density 5.2 MPE Prediction Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 S = PG/4R² Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 20 of 102 FCC Part 15C Test Report 5.3 MPE Result 802.11g, 2462MHz Maximum output power at antenna input terminal (dBm): 16.33 Maximum output power at antenna input terminal (mW): 42.95 Prediction distance (cm): 20 Prediction frequency (MHz): 2462 Maximum Directional Antenna Gain, typical (dBi): 0.5 Maximum Antenna Gain (numeric): 1.12 Power density of prediction frequency at 20.0 cm (mW/cm 2 ): 0.0096 FCC MPE limit for uncontrolled exposure at prediction frequency (mW/cm 2 ): 1.0 The device is compliant with the requirement MPE limit for uncontrolled exposure. The maximum power density at the distance of 20 cm is 0.0096 mW/cm 2 . Limit is 1 mW/cm 2 . BLE, 1Mbps, 2480 MHz Maximum output power at antenna input terminal (dBm): 14.54 Maximum output power at antenna input terminal (mW): 28.44 Prediction distance (cm): 20 Prediction frequency (MHz): 2480 Maximum Directional Antenna Gain, typical (dBi): 0.5 Maximum Antenna Gain (numeric): 1.12 Power density of prediction frequency at 20.0 cm (mW/cm 2 ): 0.0063 FCC MPE limit for uncontrolled exposure at prediction frequency (mW/cm 2 ): 1.0 The device is compliant with the requirement MPE limit for uncontrolled exposure. The maximum power density at the distance of 20 cm is 0.0063mW/cm 2 . Limit is 1 mW/cm 2 .

LLC ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com REVISED: 03-21-19 Surface Mount WLAN / Bluetooth Chip Antenna (2450MHz) Pb 3.2 x 1.6 x 1.2mm RoHS/RoHS II Compliant MSL = 1 AMCA31-2R450G-S1F-T3 FeaturesApplications Electrical Specifications •2450MHz, Bandwidth ≥90MHz •Suitable for RoHS compliant reflow •Gain 0.5dBi (Peak) / -1dBi (Average) •VSWR <2:1 •Small size – 3.2 x 1.6 x 1.2mm (0.125 x 0.62 x 0.047 inch) •Non Ground Mounting type. •Power Handling 3W Max •Matched to 50 Ohm. •Wireless application - Bluetooth / WiFi (2.445GHz) •High density applications •Bluetooth headsets or ear pieces •Computer mouse and keyboards •PROFINET – Industrial automation •Video Game systems •Alternative to larger PCB solution ParameterMin.Typ.Max.UnitsNote Frequency2450MHz Bandwidth100MHz Peak Gain0.5dBi Average Gain-1dBi VSWR2 Impedance50Ω Power Capability3W Environmental Characteristics ParametersSpecification Environmental friendlyPb-free MSL1 Operating Temperature-40 ºC to + 85 ºC Storage Temperature-10 ºC to +40 ºC Relative Humidity70% LLC ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com REVISED: 03-21-19 Surface Mount WLAN / Bluetooth Chip Antenna (2450MHz) Pb 3.2 x 1.6 x 1.2mm RoHS/RoHS II Compliant MSL = 1 AMCA31-2R450G-S1F-T3 Product Dimensions and PCB Land Drawing (Unit: mm) This is the feed-line to the Antenna and should be matched to 50 Ohms based upon the PCB dielectric parameters. SeriesABCDEFGH AMCA313.2±0.21.6±0.21.2±0.20.5±0.21.6±0.20.8±0.20.8±0.22.6±0.2 No.Terminal NameNo.Terminal Name Pad 1Feed PointPad 2NC Terminal Configurations LLC ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com REVISED: 03-21-19 Surface Mount WLAN / Bluetooth Chip Antenna (2450MHz) Pb 3.2 x 1.6 x 1.2mm RoHS/RoHS II Compliant MSL = 1 AMCA31-2R450G-S1F-T3 Application Test Circuit & PCB layouts – Default Layouts Figure shows the PCB layout highlighting the Ground and No Ground areas and trace feed line to the chip antenna. Matching Circuit and Reference Values ComponentDescriptionValue AntennaAMCA31-2R450G-S1F-T3---- Capacitor *Series C0.5 ~ 10 pF *Shunt C33pF, 100 pF Inductor Series L1.0 ~ 6nH Shunt L1.0 ~ 6nH *Series: Connected between antenna and feeding line in series. *Shunt: Connected between antenna and feeding line in parallel Note: Recommendation is to pre-place the π-type circuit layout circuit which will offer full flexibility to match the antenna to 50 Ohm in the final product layout with one of the match configurations below. Depending on matching, NC will apply to certain components. Network Analyzer LLC ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com REVISED: 03-21-19 Surface Mount WLAN / Bluetooth Chip Antenna (2450MHz) Pb 3.2 x 1.6 x 1.2mm RoHS/RoHS II Compliant MSL = 1 AMCA31-2R450G-S1F-T3 Matching Circuit on Evaluation Board • Line width should be designed to match 50 Ω characteristic impedance, depending on PCB material and thickness. • The component values given above will be vary based on the PCB layout Return Loss, VSWR and Impedance Characteristics Before Matching LLC ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com REVISED: 03-21-19 Surface Mount WLAN / Bluetooth Chip Antenna (2450MHz) Pb 3.2 x 1.6 x 1.2mm RoHS/RoHS II Compliant MSL = 1 AMCA31-2R450G-S1F-T3 Return Loss, VSWR and Impedance Characteristics Cont. After Matching Radiation Pattern and Gain Test Setup LLC ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com REVISED: 03-21-19 Surface Mount WLAN / Bluetooth Chip Antenna (2450MHz) Pb 3.2 x 1.6 x 1.2mm RoHS/RoHS II Compliant MSL = 1 AMCA31-2R450G-S1F-T3 Radiation Pattern and Gain XY Plane LLC ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com REVISED: 03-21-19 Surface Mount WLAN / Bluetooth Chip Antenna (2450MHz) Pb 3.2 x 1.6 x 1.2mm RoHS/RoHS II Compliant MSL = 1 AMCA31-2R450G-S1F-T3 Radiation Pattern and Gain XZ Plane LLC ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com REVISED: 03-21-19 Surface Mount WLAN / Bluetooth Chip Antenna (2450MHz) Pb 3.2 x 1.6 x 1.2mm RoHS/RoHS II Compliant MSL = 1 AMCA31-2R450G-S1F-T3 Radiation Pattern and Gain YZ Plane LLC ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com REVISED: 03-21-19 Surface Mount WLAN / Bluetooth Chip Antenna (2450MHz) Pb 3.2 x 1.6 x 1.2mm RoHS/RoHS II Compliant MSL = 1 AMCA31-2R450G-S1F-T3 Radiation Pattern and Gain 3D – Pattern | (2400 MHz, 2450 MHz, 2500 MHz) Frequency (MHz)Gain (dBi) 2400-4.125434820 2410-4.180958401 2420-3.877599807 2430-3.930632294 2440-3.676540694 2450-3.582882743 2460-3.534294730 2470-3.598055402 2480-3.690017588 2490-3.876259790 2500-3.918544199 Gain LLC ABRACON IS ISO9001-2015 CERTIFIED 5101 Hidden Creek Ln Spicewood TX 78669 Phone: 512-371-6159 | Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com REVISED: 03-21-19 Surface Mount WLAN / Bluetooth Chip Antenna (2450MHz) Pb 3.2 x 1.6 x 1.2mm RoHS/RoHS II Compliant MSL = 1 AMCA31-2R450…

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Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 1 of 6 FCC Part 15C Test Report Annex A – Emissions Bandwidth 2.4 GHz Wi-Fi Naming Convention: Mode_Transmitting Frequency (MHz)_Measurement type (6dB, 99%) 802.11ax20_2412 MHz_6dB 802.11ax20_2412 MHz_99% 802.11ax20_2437 MHz_6dB 802.11ax20_2437 MHz_99% 802.11ax20_2462 MHz_6dB 802.11ax20_2462 MHz_99% Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 2 of 6 FCC Part 15C Test Report 802.11b_2412 MHz_6dB 802.11b_2412 MHz_99% 802.11b_2437 MHz_6dB 802.11b_2437 MHz_99% 802.11b_2462 MHz_6dB 802.11b_2462 MHz_99% Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 3 of 6 FCC Part 15C Test Report 802.11g_2412 MHz_6dB 802.11g_2412 MHz_99% 802.11g_2437 MHz_6dB 802.11g_2437 MHz_99% 802.11g_2462 MHz_6dB 802.11g_2462 MHz_99%

Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 4 of 6 FCC Part 15C Test Report 802.11n20_2412 MHz_6dB 802.11n20_2412 MHz_99% 802.11n20_2437 MHz_6dB 802.11n20_2437 MHz_99% 802.11n20_2462 MHz_6dB 802.11n20_2462 MHz_99% Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 5 of 6 FCC Part 15C Test Report BLE Naming Convention: Mode_Transmitting Frequency (MHz)_Measurement type (6dB, 99%) 1Mbps_2402 MHz_6dB 1Mbps_2402 MHz_99% 1Mbps_2440 MHz_6dB 1Mbps_2440 MHz_99% 1Mbps_2480 MHz_6dB 1Mbps_2480 MHz_99% Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 6 of 6 FCC Part 15C Test Report 2M_2402 MHz_6dB 2M_2402 MHz_99% 2M_2440 MHz_6dB 2M_2440 MHz_99% 2M_2478 MHz_6dB 2M_2478 MHz_99%

Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 1 of 3 FCC Part 15C Test Report Annex B – Maximum Output Power 2.4GHz Wi-Fi Naming Convention: Mode_Transmitting Frequency (MHz) 802.11ax20_2412 MHz 802.11ax20_2437 MHz 802.11ax20_2462 MHz 802.11b_2412 MHz 802.11b_2437 MHz 802.11b_2462 MHz Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 2 of 3 FCC Part 15C Test Report 802.11g_2412 MHz 802.11g_2437 MHz 802.11g_2462 MHz 802.11n20_2412 MHz 802.11n20_2437 MHz 802.11n20_2462 MHz Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 3 of 3 FCC Part 15C Test Report BLE Naming Convention: Mode_Transmitting Frequency (MHz) 1Mbps_2402 MHz 1Mbps_2440 MHz 1Mbps_2480 MHz 2Mbps_2402 MHz 2Mbps_2440 MHz 2Mbps_2478 MHz

Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 1 of 3 FCC Part 15C Test Report Annex C – Peak Power Spectral Density 2.4GHz Wi-Fi Naming Convention:Mode_Transmitting Frequency (MHz) 802.11ax20_2412 MHz 802.11ax20_2437 MHz 802.11ax20_2462 MHz 802.11b_2412 MHz 802.11b_2437 MHz 802.11b_2462 MHz Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 2 of 3 FCC Part 15C Test Report 802.11g_2412 MHz 802.11g_2437 MHz 802.11g_2462 MHz 802.11n20_2412 MHz 802.11n20_2437 MHz 802.11n20_2462 MHz Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 3 of 3 FCC Part 15C Test Report BLE Naming Convention:Mode_Transmitting Frequency (MHz) 1M_2402 MHz 1M_2440 MHz 1M_2480 MHz 2M_2402 MHz 2M_2440 MHz 2M_2478 MHz

Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 1 of 9 FCC Part 15C Test Report Annex D – 100 kHz Spurious Emissions at Antenna Terminal 2.4GHz Wi-Fi Note: The 2.4 GHz Wi-Fi conducted power measurements demonstrated compliance using RMS averaging and thus 30dBc limit (FCC 15.247(d) was applied for the following measurements Naming Convention: Mode_Transmitting frequency (MHz)_Measurement type (30MHz-7GHz, 7GHz-26.5GHz, Lower Band Edge, Upper Band Edge) 802.11ax20-_2437MHz_30MHz-7GHz 802.11ax20-_2437MHz_7-26.5GHz 802.11ax20_2412_30MHz-7GHz 802.11ax20_2412_7-26.5GHz Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 2 of 9 FCC Part 15C Test Report 802.11ax20_2412_Lower Band Edge 802.11ax20_2462_30MHz-7GHz 802.11ax20_2462_7-26.5GHz 802.11ax20_2462_Upper Band Edge 802.11b_2412_7-26.5GHz 802.11b_2412_Lower Band Edge Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 3 of 9 FCC Part 15C Test Report 802.11b_2412_30MHz-7GHz 802.11b_2437_30MHz-7GHz 802.11b_2437_7-26.5GHz 802.11b_2462_30MHz-7GHz 802.11b_2462_7-26.5GHz 802.11b_2462_Upper Band Edge Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 4 of 9 FCC Part 15C Test Report 802.11g_2412_30MHz-7GHz 802.11g_2412_7-26.5GHz 802.11g_2412_Lower Band Edge 802.11g_2437_30MHz-7GHz 802.11g_2437_7-26.5GHz 802.11g_2462_30MHz-7GHz Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 5 of 9 FCC Part 15C Test Report 802.11g_2462_7-26.5GHz 802.11g_2462_Upper Band Edge 802.11n20_2412_30MHz-7GHz 802.11n20_2412_7-26.5GHz 802.11n20_2412_Lower Band Edge 802.11n20_2437MHz_30MHz-7GHz Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 6 of 9 FCC Part 15C Test Report 802.11n20_2437MHz_7-26.5GHz 802.11n20_2462_30MHz-7GHz 802.11n20_2462_7-26.5GHz 802.11n20_2462_Upper Band Edge Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 7 of 9 FCC Part 15C Test Report BLE Note: The BLE conducted power measurements demonstrated compliance using peak conducted power and thus 20dBc limit (FCC 15.247(d) was applied for the following measurements Naming Convention: Mode_Transmitting frequency (MHz)_Measurement type (30MHz-7GHz, 7GHz-26.5GHz, Lower Band Edge, Upper Band Edge) 1Mbps_2402 MHz_30M-7GHz 1Mbps_2402 MHz_7-26.5GHz 1Mbps_2402 MHz_Lower Band Edge 1Mbps_2440 MHz_30M-7GHz 1Mbps_2440 MHz_7-26.5GHz 1Mbps_2480 MHz_30M-7GHz Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 8 of 9 FCC Part 15C Test Report 1Mbps_2480 MHz_7-26.5GHz 1Mbps_2480 MHz_Upper Band Edge 2Mbps_2402 MHz_30M-7GHz 2Mbps_2402 MHz_7-26.5GHz 2Mbps_2402 MHz_Lower Band Edge 2Mbps_2440 MHz_30M-7GHz Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 9 of 9 FCC Part 15C Test Report 2Mbps_2440 MHz_7-26.5GHz 2Mbps_2478 MHz_30M-7GHz 2Mbps_2478 MHz_7-26.5GHz 2Mbps_2478 MHz_Upper Band Edge

Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 1 of 5 FCC Part 15C Test Report Annex E – FCC §15.209 Radiated Band Edges Measurements 2.4GHz Wi-Fi Note: Measurements shown are radiated values with all relevant correction factors applied, including antenna factor and cable loss. Naming Convention: Transmitting Frequency (MHz) _Mode_Measurement type (Average, Peak)_Band Edge (Upper, Lower) 2412MHz_ax20-mode_Average Lower Band Edge 2412MHz_ax20-mode_Peak Lower Band Edge 2412MHz_b-mode_Peak Lower Band Edge 2412MHz_bmode_Average Lower Band Edge 2412MHz_g-mode_Average Lower Band Edge 2412MHz_g-mode_Peak Lower Band Edge Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 2 of 5 FCC Part 15C Test Report 2412MHz_n20-mode_Average Lower Band Edge 2412MHz_n20-mode_Peak Lower Band Edge 2462MHz_ax20-mode_Average Upper Band Edge 2462MHz_ax20-mode_Peak Upper Band Edge 2462MHz_b-mode_Average Upper Band Edge 2462MHz_b-mode_Peak Upper Band Edge 2462MHz_g-mode_Average Upper Band Edge 2462MHz_g-mode_Peak Upper Band Edge Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 3 of 5 FCC Part 15C Test Report 2462MHz_n20-mode_Average Upper Band Edge 2462MHz_n20-mode_Peak Upper Band Edge Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 4 of 5 FCC Part 15C Test Report BLE Naming Convention: Transmitting Frequency (MHz) _Mode_Measurement type 2402 MHz_1Mbps_Average Lower Band Edge 2402 MHz_1Mbps_Peak Lower Band Edge 2402 MHz_2Mbps_Average Lower Band Edge 2402 MHz_2Mbps_Peak Lower Band Edge 2478MHz 2Mbps_Average Upper Band Edge 2478MHz 2Mbps_Peak Upper Band Edge Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 5 of 5 FCC Part 15C Test Report 2480MHz 1Mbps_Average Upper Band Edge 2480MHz 1Mbps_Peak Upper Band Edge

Note: This test report was prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. This test report shall not be used by the customer to claim product certification, approval, or endorsement by A2LA or any agency of the United States Government or any foreign government. * This test report may contain data and test methods that are not covered by BACL’s scope of accreditation as of the test report date shown above. These items are marked within the test report text with an asterisk “*” FCC PART 15, SUBPART C TEST REPORT For Woosh Air Inc. 2601 21st Street, San Francisco, CA, 94110 FCC ID: 2BABQSM-2B-1 R e p o r t T y p e : O r i g i n a l R e p o r t P r o d u c t T y p e : S m a r t A i r F i l t e r Prepared By: Michael Papa Test Engineer Report Number: R2509163-DTS Report Date: 2026-04-08 Reviewed By: Rachana Khanduri Project Engineer Bay Area Compliance Laboratories Corp. 1274 Anvilwood Avenue, Sunnyvale, CA 94089, USA Tel: (408) 732-9162 Fax: (408) 732-9164 Woosh Air Inc. FCC ID: 2BABQSM-2B-1 Report Number: R2509163-DTS Page 2 of 102 FCC Part 15C Test Report TABLE OF CONTENTS 1 GENERAL DESCRIPTION ...................................................................................................................................... 5 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ............................................................................ 5 1.2 MECHANICAL DESCRIPTION OF EUT ................................................................................................................... 5 1.3 OBJECTIVE ........................................................................................................................................................... 5 1.4 RELATED SUBMITTAL(S)/GRANT(S) ..................................................................................................................... 6 1.5 TEST METHODOLOGY .......................................................................................................................................... 6 1.6 MEASUREMENT UNCERTAINTY ............................................................................................................................ 6 1.7 TEST FACILITY REGISTRATIONS ........................................................................................................................... 6 1.8 TEST FACILITY ACCREDITATIONS ........................................................................................................................ 7 2 SYSTEM TEST CONFIGURATION ..................................................................................................................... 11 2.1 JUSTIFICATION ................................................................................................................................................... 11 2.2 EUT EXERCISE SOFTWARE ................................................................................................................................ 11 2.3 DUTY CYCLE CORRECTION FACTOR .................................................................................................................. 12 2.4 EQUIPMENT MODIFICATION ............................................................................................................................... 16 2.5 LOCAL SUPPORT EQUIPMENT ............................................................................................................................. 16 2.6 REMOTE SUPPORT EQUIPMENT .......................................................................................................................... 16 2.7 POWER SUPPLY AND LINE FILTERS .................................................................................................................... 16 2.8 INTERFACE PORTS AND CABLING ....................................................................................................................... 16 3 SUMMARY OF TEST RESULTS ........................................................................................................................... 17 4 FCC §15.203 – ANTENNA REQUIREMENTS ..................................................................................................... 18 4.1 APPLICABLE STANDARDS .................................................................................................................................. 18 4.2 ANTENNA DESCRIPTION ..................................................................................................................................... 18 5 FCC §2.1091, FCC §15.247(I) – RF EXPOSURE .................................................................................................. 19 5.1 APPLICABLE STANDARDS .................................................................................................................................. 19 5.2 MPE PREDICTION .............................................................................................................................................. 19 5.3 MPE RESULT ..................................................................................................................................................... 20 6 FCC §15.35(B), §15.205, §15.209, §15.247(D) – SPURIOUS RADIATED EMISSIONS .................................... 21 6.1 APPLICABLE STANDARDS .................................................................................................................................. 21 6.2 TEST SETUP........................................................................................................................................................ 22 6.3 TEST PROCEDURE .............................................................................................................................................. 22 6.4 CORRECTED AMPLITUDE AND MARGIN CALCULATION ..................................................…

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