ETENWOLF EV3 Tire Inflator Noise Test Report (85.1 dB Max, 1 m Distance)

Document Overview

Key Findings The ETENWOLF EV3 tire inflator (model V3C1) was tested for operational noise level with a sound level meter positioned 1 m from the front face of the unit; all three samples measured between 83.1 dB and 85.1 dB, and the report is issued…

Document type: Test Report
Prepared by: Daniel Wright
Published: July 22, 2026
Last reviewed: July 22, 2026
Topics: Noise Testing

Key Findings

The ETENWOLF EV3 tire inflator (model V3C1) was tested for operational noise level with a sound level meter positioned 1 m from the front face of the unit; all three samples measured between 83.1 dB and 85.1 dB, and the report is issued for reference only with no pass/fail threshold applied.

Product: EV3 Tire Inflator, model V3C1
Report No.: 2025040701
Test Date: 2025-04-07
Samples: 3 PCS
Measurement distance: 1 m (microphone to front face, horizontal)
Noise range: 83.1 dB – 85.1 dB
Verdict: For Reference Only (no numeric limit defined)

Test Overview

Field	Detail
Test Type	Noise Testing (Reliability Test)
Test Standard	Internal Standard
Numeric Limit Standard	/ (none specified)
Report No.	2025040701
Test Date	2025-04-07
Product No. / Name	EV3 Tire Inflator (充气泵)
Model / Type Specification	V3C1
Manufacturer	ETENWOLF
Sample Quantity / No.	3 PCS
Test Purpose	Evaluate the noise level of the EV3 tire inflator during operation.

Test Equipment & Setup

Item	Detail
Test Equipment	Sound Level Meter (噪音计)
Ambient Temperature	23 °C
Ambient Humidity	60 %RH
Microphone Distance	1 m from front face of product (horizontal)
Product State During Test	Powered on (normal operating state)

Test Procedure

Pre-test: Confirm ambient conditions — temperature 23 °C, relative humidity 60 %. Verify sound level meter calibration.
Sample preparation: Place each sample (1#, 2#, 3#) on a stable surface. Position the microphone at a horizontal distance of 1 m from the front face of the unit.
Test execution: Power on the inflator. Record the noise reading in dB from the sound level meter while the unit is running.
Post-test: Power off the unit. Record the measured noise value for each sample.
Acceptance criteria: No numeric pass/fail threshold is defined for this test. Results are issued for reference only.

Test Data & Results

Sample No. (编号)	Direction (方向)	Microphone Distance (距离麦克风距离)	Noise Level — dB (噪音)
1#	Front Face (正面)	1 M	85.1
2#	Front Face (正面)	1 M	83.8
3#	Front Face (正面)	1 M	83.1

Observations: All three samples produced consistent readings within a 2 dB spread. The highest recorded value was 85.1 dB (Sample 1#) and the lowest was 83.1 dB (Sample 3#). No anomalous noise events were noted during the test. Because no formal numeric limit is defined in the applicable standard field, the report carries a "For Reference Only" designation rather than a pass or fail verdict.

Conclusion

Item	Detail
Parameter Tested	Operational Noise Level
Standard Applied	Internal Standard (no numeric limit)
Test Conditions	23 °C / 60 %RH, microphone at 1 m horizontal from front face
Samples Tested	3 PCS (1#, 2#, 3#)
Results	85.1 dB / 83.8 dB / 83.1 dB
Verdict	For Reference Only (■供参考)

Document Information

Role	Name (Pinyin)	Date
Tested By (测试/日期)	Li Guanghua	2025-04-07
Checked By (审核/日期)	Zhang Ronggui	2025-04-07
Approved By (核准/日期)	Mai Shaoqiang	2025-04-07
Form / Report No.	2025040701	—

Frequently Asked Questions

How loud is the ETENWOLF EV3 tire inflator during operation?

When tested at 1 m horizontal distance from the front face, the EV3 produced noise levels of 85.1 dB, 83.8 dB, and 83.1 dB across three samples — an average of approximately 84 dB under standard indoor conditions (23 °C / 60 %RH).

What test standard was used for the EV3 noise measurement?

The test followed ETENWOLF’s internal reliability test standard. No third-party numeric pass/fail threshold (such as an IEC or ISO limit) was applied, so the results are designated for reference only rather than as a formal compliance verdict.

At what distance is the noise of the EV3 inflator measured?

The sound level meter microphone was positioned at a horizontal distance of 1 m from the front face of the inflator while the unit was powered on and running, which is the measurement geometry specified in the internal test procedure.

Does the EV3 pass the noise test?

Because no numeric noise limit is defined in the current test standard for this product, a pass or fail verdict is not assigned. The three samples measured 83.1–85.1 dB and the report is issued as reference data for product development and quality tracking purposes.

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