2AB22-F461SLevoit Windi Lift Pro

Windi Lift Pro Tower Fan User Manual LTF-F461S-AUS 2 1 × Tower Fan Body 2 × Bases 1 × Pole 1 × Screw Set 1 × Screwdriver 1 × Remote Control 1 × 3V CR2025 Battery (Pre-Installed) 1 × User Manual 1 × Quick Start Guide SpecificationsTable of Contents Package Contents Package Contents Specifications Safety Information Getting to Know Your Smart Tower Fan Controls & Display Getting Started VeSync App Setup Using Your Smart Tower Fan VeSync App Functions Care & Maintenance User Servicing Instructions Troubleshooting VeSync App Troubleshooting Limited Warranty Information Customer Support 2 2 3 7 9 11 12 13 14 15 16 17 18 20 23 ModelLTF-F461S-AUS Power Supply AC 120V, 60Hz Rated Power36W Timer 2–12 hr Max Speed 25 f t/s Noise Level 28–48dB Fuse2.5 Amp, 125V (3.6 x 10 mm) Dimensions 12.5 x 12.5 x 47 in / 32 x 32 x 119 cm Weight 11.5 lb / 5.2 kg 3 •Only use your tower fan as described in this manual. •Do not use your tower fan outdoors. •To protect against electric shock, do not immerse the tower fan cord, plug, or housing in water or spray with liquids. •Do not place the tower fan in a window. Keep your tower fan away from water and wet or damp areas. •Keep your tower fan away from open flames, heat sources, or other heating and cooking appliances. •Do not use where combustible gases, vapors, metallic dust, aerosol (spray) products, or fumes from industrial oil are present. •Do not place anything into any opening on the tower fan. •Do not use with any openings blocked; keep free of dust, lint, hair, and anything that may reduce airflow. •Avoid contact with moving fan parts. •Do not hang or mount the tower fan on a wall or ceiling. •Only use the tower fan on a dry and level surface. •Close supervision is necessary when the tower fan is used by or near children. •Children should be supervised to ensure that they do not play with the tower fan. •Children should be supervised to ensure they do not insert fingers or objects into the vent openings. •Children should not clean or perform maintenance on the tower To reduce the risk of fire, electric shock, or other injury, follow all instructions and safety guidelines. fan without supervision. •Keep the inside of the tower fan dry. To prevent moisture buildup, avoid placing in rooms with major temperature changes. •Unplug the tower fan when not in use for an extended period of time. •Do not use other items or third- party parts as replacement parts for this tower fan. •Do not use your tower fan if it is damaged or not working correctly, or if the cord or plug is damaged. Do not try to repair it yourself. Contact Customer Support (see page 23). •Do not operate any fan with a damaged cord or plug. Discard fan or return to an authorized service facility for examination and/or repair. •Do not run cord under carpeting. Do not cover cord with throw rugs, runners, or similar coverings. Do not route cord under furniture or appliances. Arrange cord away from traffic area and where it will not be tripped over. •WARNING: To reduce the risk of fire or electric shock, do not use this tower fan with any solid-state speed controls (such as a dimmer switch). •This tower fan is not to be used by persons (including children) with reduced physical, sensory, or mental capacities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning the use Safety Information GENERAL SAFETY READ AND SAVE THESE INSTRUCTIONS 4 •Your tower fan has a polarized plug (one prong is wider than the other), which fits into a polarized outlet only one way. If the plug does not fit, reverse the plug. If it still does not fit, do not use the plug in that outlet. Do not alter the plugin any way. •Turn off the tower fan before removing the plug from the outlet. To unplug, grab the plug and pull from the outlet. Never pull from the power cord. •Keep the tower fan near the outlet it is plugged into. The use of an extension cord is not recommended. •Always turn the tower fan off and unplug it when not in use and before moving, cleaning, or servicing the fan. •Never place the cord near any heat source. •Do not cover the cord with a rug, carpet, or other covering. Do not POWER CORD & FUSE place the cord under furniture or appliances. •To avoid a tripping hazard, keep the cord out of areas where people walk often. Place the cord where it will not be tripped over and safely coil the cord. •A loose fit between the AC outlet and plug may cause overheating and a distortion of the plug. Contact a qualified electrician to replace a loose or worn outlet. •This product employs overload protection (fuse). A blown fuse indicates an overload or short- circuit situation. If the fuse blows, unplug the product from the outlet. Replace the fuse as per the user servicing instructions (follow product marking for proper fuse rating) and check the product. To replace the fuse, see Replacing the Fuse, page 16. If the replacement fuse blows, a short- circuit may be present and the product should be discarded or returned to an authorized service facility for examination and/or repair. Please contact Customer Support (see page 23). •If the power cord is damaged, it must be replaced by Vesync (US) Corporation or similarly qualified persons in order to avoid an electric or fire hazard. Please contact Customer Support (see page 23). •Your tower fan should only be used with 120V, 60Hz electrical systems. Do not plug into another type of outlet. Safety Information (cont.) of the appliance by a person responsible for their safety. •Not for commercial or industrial use. Household use only. •Ensure that the fan is switched off from the supply mains before removing the guard. •WARNING: To Reduce The Risk Of Fire, Electric Shock Or Injury To Persons, Do Not Use Replacement Parts That Have Not Been Recommended By The Manufacturer (e.g. Parts Made At Home Using A 3D Printer). •User instructions of portable and window mounted fans shall state that a fan shall not be modified by users, such as by ad…

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Internal Photos M/N: LTF-F461S-AUS Internal Photos M/N: LTF-F461S-AUS Internal Photos M/N: LTF-F461S-AUS Internal Photos M/N: LTF-F461S-AUS PCB Antenna Internal Photos M/N: LTF-F461S-AUS Internal Photos M/N: LTF-F461S-AUS Internal Photos M/N: LTF-F461S-AUS

Conducted Test Radiated Test (30-1000 MHz) Radiated Test (Above 1GHz)

Product Information ClientChen BeiProtocolWiFi+Ble Product DescriptionFanSample Quantity1pcs Model TypeESP32-C3-SOLO-1SampelVersionTR3 Sample Picutres Antenna Test Report Antannamanufacturer imformation Name: EspressifSystems (Shanghai) Co., Ltd. Address: High-tech park in zhangjiangshanghai Model type: ESP32-C3-SOLO-1 Prepared ByMORLAB LABORATORY Adress F1, Building A, FeiYangScience and Technology Park, No.8, LongchangRd.,BaoanDistrict, Shenzhen, Guangdong Province, China TEL36698555 Test Data2025.06.19 EquipentManufacturerTypeSerial Number Calibration Date Effective Date Network Analyzer AglientE5071CMY461101402025.05.302026.05.29 Dark RoomETSAMS-8923-150TJ2235-Q17932025.11.302026.11.29 Antenna Test System ETS EMQuestEMQ- 100 V1.13 Build 21267 1685// Test Data SVNEfficiency & Gain Frequency (MHz) Gain (dBi) Efficiency (%) Efficiency (dB) 2400 1.80 50.12 -4.4 2410 1.91 50.13 -4.8 2420 2.24 49.10 -5.1 2430 2.44 48.07 -5.2 2440 2.45 48.16 -5.5 2450 2.29 47.80 -5.3 2460 2.09 47.67 -5.7 2470 1.84 47.17 -6.1 2480 1.92 47.17 -6.3 2490 1.86 47.32 -6.7 2500 1.88 48.58 -6.9 3D (2450MHz)θ= 90°(XY Plane) φ= 0°（XZ Plane）φ= 90°(YZ Plane) Test Data

Page 1 of 25 Report No.ESTE-R2604096 Appendix A: DTS Bandwidth Test Result TestMode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_1M Ant1 2402 0.615 2401.682 2402.297 0.5 PASS BLE_1M Ant1 2440 0.612 2439.700 2440.312 0.5 PASS BLE_1M Ant1 2480 0.645 2479.676 2480.321 0.5 PASS BLE_2M Ant1 2402 1.116 2401.448 2402.564 0.5 PASS BLE_2M Ant1 2440 1.170 2439.418 2440.588 0.5 PASS BLE_2M Ant1 2480 1.182 2479.400 2480.582 0.5 PASS Page 2 of 25 Report No.ESTE-R2604096 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Page 3 of 25 Report No.ESTE-R2604096 BLE_2M-Ant1-2402-PASS BLE_2M-Ant1-2440-PASS Page 4 of 25 Report No.ESTE-R2604096 BLE_2M-Ant1-2480-PASS Page 5 of 25 Report No.ESTE-R2604096 Appendix B: Maximum conducted output power Test Result Peak TestMode Antenna Frequency[MHz] Conducted Peak Power[dBm] Conducted Limit[dBm] Verdict BLE_1M Ant1 2402 11.01 ≤30 PASS BLE_1M Ant1 2440 8.70 ≤30 PASS BLE_1M Ant1 2480 6.26 ≤30 PASS BLE_2M Ant1 2402 11.39 ≤30 PASS BLE_2M Ant1 2440 9.06 ≤30 PASS BLE_2M Ant1 2480 6.57 ≤30 PASS Test Graphs Peak BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS Page 6 of 25 Report No.ESTE-R2604096 BLE_1M-Ant1-2480-PASS BLE_2M-Ant1-2402-PASS Page 7 of 25 Report No.ESTE-R2604096 BLE_2M-Ant1-2440-PASS BLE_2M-Ant1-2480-PASS Page 8 of 25 Report No.ESTE-R2604096 Page 9 of 25 Report No.ESTE-R2604096 Appendix C: Maximum power spectral density Test Result TestMode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE_1M Ant1 2402 -3.77 ≤8.00 PASS BLE_1M Ant1 2440 -6.21 ≤8.00 PASS BLE_1M Ant1 2480 -8.56 ≤8.00 PASS BLE_2M Ant1 2402 -5.40 ≤8.00 PASS BLE_2M Ant1 2440 -8.16 ≤8.00 PASS BLE_2M Ant1 2480 -10.20 ≤8.00 PASS Page 10 of 25 Report No.ESTE-R2604096 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Page 11 of 25 Report No.ESTE-R2604096 BLE_2M-Ant1-2402-PASS BLE_2M-Ant1-2440-PASS Page 12 of 25 Report No.ESTE-R2604096 BLE_2M-Ant1-2480-PASS Page 13 of 25 Report No.ESTE-R2604096 Appendix D: Reference level measurement Test Result TestMode Antenna Freq(MHz) Max.Point[MHz] Result[dBm] BLE_1M Ant1 2402 2402.00 10.59 BLE_1M Ant1 2440 2440.00 8.65 BLE_1M Ant1 2480 2479.99 6.13 BLE_2M Ant1 2402 2401.96 9.04 BLE_2M Ant1 2440 2440.05 7.04 BLE_2M Ant1 2480 2479.99 6.07 Page 14 of 25 Report No.ESTE-R2604096 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Page 15 of 25 Report No.ESTE-R2604096 BLE_2M-Ant1-2402-PASS BLE_2M-Ant1-2440-PASS Page 16 of 25 Report No.ESTE-R2604096 BLE_2M-Ant1-2480-PASS Page 17 of 25 Report No.ESTE-R2604096 Appendix E: Band edge measurements Test Result TestMode Antenna ChName Frequency [MHz] RefLevel[dBm] Result[dBm] Limit[dBm] Verdict BLE_1M Ant1 Low 2402 10.59 -39.47 ≤-9.41 PASS BLE_1M Ant1 High 2480 6.13 -39.73 ≤-13.87 PASS BLE_2M Ant1 Low 2402 9.04 -39.23 ≤-10.96 PASS BLE_2M Ant1 High 2480 6.07 -38.59 ≤-13.93 PASS Page 18 of 25 Report No.ESTE-R2604096 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2480-PASS BLE_2M-Ant1-2402-PASS Page 19 of 25 Report No.ESTE-R2604096 BLE_2M-Ant1-2480-PASS Page 20 of 25 Report No.ESTE-R2604096 Appendix F: Conducted Spurious Emission Test Result TestMode Antenna Frequency[MHz] FreqRange [MHz] RefLevel [dBm] Result[dBm] Limit[dBm] Verdict BLE_1M Ant1 2402 30~26500 10.59 -40.74 ≤-9.41 PASS BLE_1M Ant1 2440 30~26500 8.65 -41.23 ≤-11.35 PASS BLE_1M Ant1 2480 30~26500 6.13 -41.35 ≤-13.87 PASS BLE_2M Ant1 2402 30~26500 9.04 -41.45 ≤-10.96 PASS BLE_2M Ant1 2440 30~26500 7.04 -41.81 ≤-12.96 PASS BLE_2M Ant1 2480 30~26500 6.07 -41.67 ≤-13.93 PASS Page 21 of 25 Report No.ESTE-R2604096 Test Graphs BLE_1M-Ant1-2402-30~26500-PASS BLE_1M-Ant1-2440-30~26500-PASS BLE_1M-Ant1-2480-30~26500-PASS Page 22 of 25 Report No.ESTE-R2604096 BLE_2M-Ant1-2402-30~26500-PASS BLE_2M-Ant1-2440-30~26500-PASS Page 23 of 25 Report No.ESTE-R2604096 BLE_2M-Ant1-2480-30~26500-PASS Page 24 of 25 Report No.ESTE-R2604096 Appendix G: Duty Cycle Test Result TestMode Antenna Frequency[MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] BLE_1M Ant1 2440 2.10 2.50 84.00 0.76 BLE_2M Ant1 2440 1.05 1.87 56.15 2.51 Page 25 of 25 Report No.ESTE-R2604096 Test Graphs NTNV-BLE_1M-Ant1-2440 NTNV-BLE_2M-Ant1-2440

Page 1 of 49 Report No.ESTE-R2604096 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of Vesync (US) Corporation Levoit Windi Lift Pro Model Number: LTF-F461S-AUS Antennal Model: LTF-F461S-XXXX (where "X" may be blank, number from 0 to 9 or letter from A to Z) FCC ID: 2AB22-F461S Applicant: Vesync (US) Corporation Address: 1775 FLIGHT WAY, SUITE 150, TUSTIN, California 92782, United States Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2604096 Date of Test: Feb. 27, 2026 to Apr. 08, 2026 Date of Report: Apr. 15, 2026 Page 2 of 49 Report No.ESTE-R2604096 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION .......................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................... 5 1.1. Description of Device (EUT) ............................................................................................................ 5 1.2. Antenna Information ......................................................................................................................... 5 1.3. Information of RF Cable ................................................................................................................... 5 2. SUMMARY OF TEST ........................................................................................................................... 6 2.1. Summary of test result ..................................................................................................................... 6 2.2. Test Facilities ..................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................ 8 2.4. Assistant equipment used for test .................................................................................................. 8 2.5. Block Diagram ................................................................................................................................... 8 2.6. Test Mode .......................................................................................................................................... 9 2.7. Power Setting of Test Software ...................................................................................................... 9 2.8. Duty Cycle .......................................................................................................................................... 9 2.9. Channel List ..................................................................................................................................... 10 2.10. Test Equipment List ...................................................................................................................... 11 3. 6DB BANDWIDTH ............................................................................................................................ 13 3.1. Limit ................................................................................................................................................... 13 3.2. Test Setup ........................................................................................................................................ 13 3.3. Spectrum Analyzer Setting ............................................................................................................ 13 3.4. Test Procedure ................................................................................................................................ 13 3.5. Test Result ....................................................................................................................................... 13 4. MAXIMUM PEAK OUTPUT POWER .................................................................................................. 14 4.1. Limit ................................................................................................................................................... 14 4.2. Test Setup ........................................................................................................................................ 14 4.3. Spectrum Analyzer Setting ............................................................................................................ 14 4.4. Test Procedure ................................................................................................................................ 14 4.5. Test Result ....................................................................................................................................... 14 5. POWER SPECTRAL DENSITY .......................................................................................................... 15 5.1. Limit ................................................................................................................................................... 15 5.2. Test Setup ........................................................................................................................................ 15 5.3. Spectrum Analyzer Setting ............................................................................................................ 15 5.4. Test Procedure ................................................................................................................................ 15 5.5. Test Result ....................................................................................................................................... 15 6. CONDUCTED BAND EDGE .............................................................................................................. 16 6.1. Limit ......................................................................…

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Page 1 of 43 Report No.ESTE-R2604097 Appendix A: DTS Bandwidth Test Result TestMode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict 11B Ant1 2412 9.560 2406.960 2416.520 0.5 PASS 11B Ant1 2437 9.440 2432.000 2441.440 0.5 PASS 11B Ant1 2462 9.120 2457.000 2466.120 0.5 PASS 11G Ant1 2412 16.400 2403.800 2420.200 0.5 PASS 11G Ant1 2437 16.560 2428.720 2445.280 0.5 PASS 11G Ant1 2462 16.360 2453.840 2470.200 0.5 PASS 11N20SISO Ant1 2412 17.600 2403.200 2420.800 0.5 PASS 11N20SISO Ant1 2437 17.680 2428.160 2445.840 0.5 PASS 11N20SISO Ant1 2462 17.720 2453.120 2470.840 0.5 PASS 11N40SISO Ant1 2422 31.520 2405.760 2437.280 0.5 PASS 11N40SISO Ant1 2437 30.960 2421.320 2452.280 0.5 PASS 11N40SISO Ant1 2452 32.000 2435.680 2467.680 0.5 PASS Page 2 of 43 Report No.ESTE-R2604097 Test Graphs 11B-Ant1-2412-PASS 11B-Ant1-2437-PASS 11B-Ant1-2462-PASS Page 3 of 43 Report No.ESTE-R2604097 11G-Ant1-2412-PASS 11G-Ant1-2437-PASS Page 4 of 43 Report No.ESTE-R2604097 11G-Ant1-2462-PASS 11N20SISO-Ant1-2412-PASS Page 5 of 43 Report No.ESTE-R2604097 11N20SISO-Ant1-2437-PASS 11N20SISO-Ant1-2462-PASS Page 6 of 43 Report No.ESTE-R2604097 11N40SISO-Ant1-2422-PASS 11N40SISO-Ant1-2437-PASS Page 7 of 43 Report No.ESTE-R2604097 11N40SISO-Ant1-2452-PASS Page 8 of 43 Report No.ESTE-R2604097 Appendix B: Maximum conducted output power Test Result Peak TestMode Antenna Frequency [MHz] Peak Power[dBm] Conducted Limit[dBm] Verdict 11B Ant1 2412 17.16 ≤30.00 PASS 11B Ant1 2437 15.15 ≤30.00 PASS 11B Ant1 2462 14.35 ≤30.00 PASS 11G Ant1 2412 16.34 ≤30.00 PASS 11G Ant1 2437 14.40 ≤30.00 PASS 11G Ant1 2462 13.71 ≤30.00 PASS 11N20SISO Ant1 2412 14.08 ≤30.00 PASS 11N20SISO Ant1 2437 12.14 ≤30.00 PASS 11N20SISO Ant1 2462 11.36 ≤30.00 PASS 11N40SISO Ant1 2422 12.46 ≤30.00 PASS 11N40SISO Ant1 2437 11.28 ≤30.00 PASS 11N40SISO Ant1 2452 10.87 ≤30.00 PASS Page 9 of 43 Report No.ESTE-R2604097 Test Graphs Peak 11B-Ant1-2412-PASS 11B-Ant1-2437-PASS 11B-Ant1-2462-PASS Page 10 of 43 Report No.ESTE-R2604097 11G-Ant1-2412-PASS 11G-Ant1-2437-PASS Page 11 of 43 Report No.ESTE-R2604097 11G-Ant1-2462-PASS 11N20SISO-Ant1-2412-PASS Page 12 of 43 Report No.ESTE-R2604097 11N20SISO-Ant1-2437-PASS 11N20SISO-Ant1-2462-PASS Page 13 of 43 Report No.ESTE-R2604097 11N40SISO-Ant1-2422-PASS 11N40SISO-Ant1-2437-PASS Page 14 of 43 Report No.ESTE-R2604097 11N40SISO-Ant1-2452-PASS Page 15 of 43 Report No.ESTE-R2604097 Appendix C: Maximum power spectral density Test Result TestMode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict 11B Ant1 2412 -11.83 ≤8.00 PASS 11B Ant1 2437 -13.69 ≤8.00 PASS 11B Ant1 2462 -12.58 ≤8.00 PASS 11G Ant1 2412 -17.02 ≤8.00 PASS 11G Ant1 2437 -18.20 ≤8.00 PASS 11G Ant1 2462 -17.72 ≤8.00 PASS 11N20SISO Ant1 2412 -17.85 ≤8.00 PASS 11N20SISO Ant1 2437 -19.29 ≤8.00 PASS 11N20SISO Ant1 2462 -19.63 ≤8.00 PASS 11N40SISO Ant1 2422 -20.15 ≤8.00 PASS 11N40SISO Ant1 2437 -20.88 ≤8.00 PASS 11N40SISO Ant1 2452 -19.88 ≤8.00 PASS Page 16 of 43 Report No.ESTE-R2604097 Test Graphs 11B-Ant1-2412-PASS 11B-Ant1-2437-PASS 11B-Ant1-2462-PASS Page 17 of 43 Report No.ESTE-R2604097 11G-Ant1-2412-PASS 11G-Ant1-2437-PASS Page 18 of 43 Report No.ESTE-R2604097 11G-Ant1-2462-PASS 11N20SISO-Ant1-2412-PASS Page 19 of 43 Report No.ESTE-R2604097 11N20SISO-Ant1-2437-PASS 11N20SISO-Ant1-2462-PASS Page 20 of 43 Report No.ESTE-R2604097 11N40SISO-Ant1-2422-PASS 11N40SISO-Ant1-2437-PASS Page 21 of 43 Report No.ESTE-R2604097 11N40SISO-Ant1-2452-PASS Page 22 of 43 Report No.ESTE-R2604097 Appendix D: Reference level measurement Test Result TestMode Antenna Freq(MHz) Max.Point[MHz] Result[dBm] 11B Ant1 2412 2410.95 1.52 11B Ant1 2437 2436.52 -0.02 11B Ant1 2462 2461.56 -0.39 11G Ant1 2412 2410.50 -5.30 11G Ant1 2437 2430.74 -4.79 11G Ant1 2462 2457.02 -5.64 11N20SISO Ant1 2412 2414.48 -6.11 11N20SISO Ant1 2437 2430.74 -7.18 11N20SISO Ant1 2462 2455.75 -7.77 11N40SISO Ant1 2422 2410.75 -9.43 11N40SISO Ant1 2437 2431.98 -10.62 11N40SISO Ant1 2452 2449.50 -11.21 Page 23 of 43 Report No.ESTE-R2604097 Test Graphs 11B-Ant1-2412-PASS 11B-Ant1-2437-PASS 11B-Ant1-2462-PASS Page 24 of 43 Report No.ESTE-R2604097 11G-Ant1-2412-PASS 11G-Ant1-2437-PASS Page 25 of 43 Report No.ESTE-R2604097 11G-Ant1-2462-PASS 11N20SISO-Ant1-2412-PASS Page 26 of 43 Report No.ESTE-R2604097 11N20SISO-Ant1-2437-PASS 11N20SISO-Ant1-2462-PASS Page 27 of 43 Report No.ESTE-R2604097 11N40SISO-Ant1-2422-PASS 11N40SISO-Ant1-2437-PASS Page 28 of 43 Report No.ESTE-R2604097 11N40SISO-Ant1-2452-PASS Page 29 of 43 Report No.ESTE-R2604097 Appendix E: Band edge measurements Test Result TestMode Antenna ChName Frequency [MHz] RefLevel[dBm] Result[dBm] Limit[dBm] Verdict 11B Ant1 Low 2412 1.52 -38.76 ≤-18.48 PASS 11B Ant1 High 2462 -0.39 -38.70 ≤-20.39 PASS 11G Ant1 Low 2412 -5.30 -39.55 ≤-25.30 PASS 11G Ant1 High 2462 -5.64 -38.88 ≤-25.64 PASS 11N20SISO Ant1 Low 2412 -6.11 -38.57 ≤-26.11 PASS 11N20SISO Ant1 High 2462 -7.77 -39.51 ≤-27.77 PASS 11N40SISO Ant1 Low 2422 -9.43 -39.16 ≤-29.43 PASS 11N40SISO Ant1 High 2452 -11.21 -38.51 ≤-31.21 PASS Page 30 of 43 Report No.ESTE-R2604097 Test Graphs 11B-Ant1-2412-PASS 11B-Ant1-2462-PASS 11G-Ant1-2412-PASS Page 31 of 43 Report No.ESTE-R2604097 11G-Ant1-2462-PASS 11N20SISO-Ant1-2412-PASS Page 32 of 43 Report No.ESTE-R2604097 11N20SISO-Ant1-2462-PASS 11N40SISO-Ant1-2422-PASS Page 33 of 43 Report No.ESTE-R2604097 11N40SISO-Ant1-2452-PASS Page 34 of 43 Report No.ESTE-R2604097 Appendix F: Conducted Spurious Emission Test Result TestMode Antenna Frequency[MHz] FreqRange [Mhz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict 11B Ant1 2412 30~26500 1.52 -41.57 ≤-18.48 PASS 11B Ant1 2437 30~26500 -0.02 -41.36 ≤-20.02 PASS 11B Ant1 2462 30~26500 -0.39 -41.47 ≤-20.39 PASS 11G Ant1 2412 30~26500 -5.30 -41.63 ≤-25.30 PASS 11G Ant1 2437 30~26500 -4.79 -40.81 ≤-24.79 PASS 11G Ant1 2462 30~26500 -5.64 -41.09 ≤-25.64 PASS 11N20SISO Ant1 2412 30~26500 -6.11 -41.67 ≤-26.11 PASS 11N20SISO Ant1 2437 30~26500 -7.18 -40.98 ≤-27.18 PASS 11N20SISO Ant1 2462 30~26500 -7.77 -40.28 ≤-2…

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Page 1 of 41 Report No. ESTE-R2604097 FCC PART 15C REPORT FOR CERTIFICATION On Behalf of Vesync (US) Corporation Levoit Windi Lift Pro Model Number: LTF-F461S-AUS Antennal Model: LTF-F461S-XXXX (where "X" may be blank, number from 0 to 9 or letter from A to Z) FCC ID: 2AB22-F461S Applicant: Vesync (US) Corporation Address: 1775 FLIGHT WAY, SUITE 150, TUSTIN, California 92782, United States Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2604097 Date of Test: Feb. 27, 2026 to Apr. 08, 2026 Date of Report: Apr. 15, 2026 Page 2 of 41 Report No. ESTE-R2604097 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION .......................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................... 5 1.1. Description of Device (EUT) ............................................................................................................ 5 1.2. Antenna Information ......................................................................................................................... 5 1.3. Information of RF Cable ................................................................................................................... 5 2. SUMMARY OF TEST ........................................................................................................................... 6 2.1. Summary of test result ..................................................................................................................... 6 2.2. Test Facilities ..................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................ 8 2.4. Assistant equipment used for test .................................................................................................. 8 2.5. Block Diagram ................................................................................................................................... 8 2.6. Test Mode .......................................................................................................................................... 9 2.7. Power Setting of Test Software .................................................................................................... 10 2.8. Duty Cycle ........................................................................................................................................ 10 2.9. Channel List ..................................................................................................................................... 11 2.10. Test Equipment List ...................................................................................................................... 12 3. 6DB BANDWIDTH............................................................................................................................ 14 3.1. Limit ................................................................................................................................................... 14 3.2. Test Setup ........................................................................................................................................ 14 3.3. Spectrum Analyzer Setting ............................................................................................................ 14 3.4. Test Procedure ................................................................................................................................ 14 3.5. Test Result ....................................................................................................................................... 14 4. MAXIMUM PEAK OUTPUT POWER .................................................................................................. 15 4.1. Limit ................................................................................................................................................... 15 4.2. Test Setup ........................................................................................................................................ 15 4.3. Spectrum Analyzer Setting ............................................................................................................ 15 4.4. Test Procedure ................................................................................................................................ 15 4.5. Test Result ....................................................................................................................................... 15 5. POWER SPECTRAL DENSITY .......................................................................................................... 16 5.1. Limit ................................................................................................................................................... 16 5.2. Test Setup ........................................................................................................................................ 16 5.3. Spectrum Analyzer Setting ............................................................................................................ 16 5.4. Test Procedure ................................................................................................................................ 16 5.5. Test Result ....................................................................................................................................... 16 6. CONDUCTED BAND EDGE .............................................................................................................. 17 6.1. Limit ............................................................................…

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Page 1 of 5 Report No. ESTE-R2604098 FCC 47 CFR MPE REPORT Vesync (US) Corporation Levoit Windi Lift Pro Model Number: LTF-F461S-AUS Antennal Model: LTF-F461S-XXXX (where "X" may be blank, number from 0 to 9 or letter from A to Z) FCC ID: 2AB22-F461S Applicant: Vesync (US) Corporation Address: 177…

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