Document Overview
Key Findings All three C2PV samples were measured at 1 m frontal distance under standard indoor conditions, with sound pressure levels ranging from 75.7 dB to 81.6 dB — within the evaluated range of 35–100 dB. Results are provided for reference only. Product: ETENWOLF C2PV…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Noise Testing
Key Findings
All three C2PV samples were measured at 1 m frontal distance under standard indoor conditions, with sound pressure levels ranging from 75.7 dB to 81.6 dB — within the evaluated range of 35–100 dB. Results are provided for reference only.
- Product: ETENWOLF C2PV Tire Inflator (Air Pump)
- Report No.: 2025110101
- Test Date: 2025-11-01
- Samples: 3 PCS
- Measurement Distance: 1 m (frontal, microphone horizontal)
- Noise Range Measured: 75.7 – 81.6 dB
- Acceptance Criterion: Sound pressure level (Lmax) 35–100 dB
- Verdict: For Reference Only
Test Overview
| Field | Details |
|---|---|
| Report Title | Ambient Noise Test Report (环境噪音测试报告) |
| Product No. / Name | C2PV — Air Pump (充气泵) |
| Report No. | 2025110101 |
| Test Date | 2025-11-01 |
| Model / Type Specification | C2PV |
| Sample Quantity / No. | 3 PCS |
| Type of Test | ■ Reliability Test (可靠性测试) |
| Test Standard | Internal Standard (内部标准) |
| Test Purpose | Evaluate the noise level of the sample under different operating scenarios (评估样品在不同场景下的噪声水平) |
| Manufacturer / Brand | ETENWOLF |
Test Equipment & Setup
| Parameter | Details |
|---|---|
| Test Equipment | Sound Level Meter (噪音计) |
| Measurement Distance | 1 m — microphone at horizontal distance from product front face |
| Measurement Direction | Frontal (正面) |
| Acceptance Criterion | Sound pressure level Lmax: 35–100 dB |
| Ambient Temperature | 23 °C |
| Ambient Humidity | 60 % |
| Test Conditions | Room temperature and humidity: 23 °C, 60 % |
Test Procedure
- Pre-test: Confirm ambient conditions — temperature 23 °C, relative humidity 60 %. Verify sound level meter calibration.
- Sample preparation: Place each C2PV sample on a flat surface. Ensure the microphone is positioned at a horizontal distance of 1 m from the front face of the product.
- Power on: Switch the product to operating (powered-on) state (产品开机状态下).
- Measurement: Record the sound pressure level (dB) for each sample individually with the microphone at 1 m frontal distance.
- Post-test: Power off the device. Record all readings in the test log.
- Acceptance criteria: Sound pressure level (Lmax) must fall within 35–100 dB to be within the evaluated range. Results are classified as Pass, Fail, or For Reference Only.
Test Data & Results
| Sample No. (编号) | Direction (方向) | Distance from Microphone (距离麦克风距离) | Noise Level / dB (噪音) |
|---|---|---|---|
| 1# | Front (正面) | 1 M | 75.7 |
| 2# | Front (正面) | 1 M | 81.6 |
| 3# | Front (正面) | 1 M | 80.5 |
Observations: Sample 1# recorded the lowest noise at 75.7 dB. Samples 2# and 3# measured 81.6 dB and 80.5 dB respectively. All three readings fall within the evaluated sound pressure level range of 35–100 dB. No anomalies or out-of-range values were observed. The report remarks section contains no additional notes.
Conclusion
| Item | Details |
|---|---|
| Test Result | For Reference Only (■供参考) |
| Standard / Criterion | Internal Standard — Sound pressure level (Lmax) 35–100 dB |
| Test Conditions | 23 °C, 60 % RH; microphone at 1 m frontal horizontal distance; product powered on |
| Samples Tested | 3 PCS (1#, 2#, 3#) |
| Noise Range Observed | 75.7 – 81.6 dB |
| Verdict | All measurements within evaluated range. Results issued for reference only — not a formal Pass/Fail determination. |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By (测试/日期) | Li Guanghua | 2025-11-01 |
| Checked By (审核/日期) | Zhang Ronggui | 2025-11-01 |
| Approved By (核准/日期) | Mai Shaoqiang | 2025-11-01 |
| Report No. | 2025110101 | |
| Source File | C2PV-噪音测试_2025.11.1.xlsx | |
| Sheet | 噪音测试 (Sheet 1 of 1) | |
Frequently Asked Questions
How loud is the ETENWOLF C2PV tire inflator during operation?
During testing at 1 m frontal distance, the C2PV recorded noise levels between 75.7 dB and 81.6 dB across three samples. This is comparable to a typical vacuum cleaner or busy roadside, and is within the evaluated range of 35–100 dB per the internal test standard.
What test standard was used for the C2PV noise measurement?
The test was conducted against ETENWOLF’s internal standard, which evaluates sound pressure level (Lmax) in the range of 35–100 dB. This is a reliability test, not an EMC or safety test.
What does “For Reference Only” mean in the C2PV noise test result?
“For Reference Only” (供参考) means the test data is provided as informational background. It is not a formal Pass or Fail determination — the measurements document actual operating noise levels for engineering and product development purposes.
At what distance was the microphone placed for the C2PV noise test?
The microphone was positioned at a horizontal distance of 1 m from the front face of the C2PV unit while the product was in its powered-on operating state. All three samples were measured at the same distance and direction.