ETENWOLF HB3 Hair Dryer Noise Test Report (Front-Face, 1 m, 3 Samples)

Document Overview

Key Findings All three HB3 hair dryer samples measured front-face sound pressure levels between 83.2 dB and 84.0 dB at 1 m distance, falling within the evaluated range of 35–100 dB; results are provided for reference only per internal standard. Product: HB3 Hair Dryer Report…

Document type
Test Report
Prepared by
Alex Newman
Published
Last reviewed
Topics
Noise Testing

Key Findings

All three HB3 hair dryer samples measured front-face sound pressure levels between 83.2 dB and 84.0 dB at 1 m distance, falling within the evaluated range of 35–100 dB; results are provided for reference only per internal standard.

  • Product: HB3 Hair Dryer
  • Report No.: 2025052101
  • Test Date: 2025-05-21
  • Samples: 3 PCS
  • Measurement direction: Front face
  • Microphone distance: 1 m
  • Range tested: 83.2 – 84.0 dB
  • Acceptance band: Lmax 35–100 dB
  • Verdict: For Reference Only

Test Overview

Field Detail
Report Title Noise Test Report
Product No. / Name HB3 Hair Dryer
Report No. 2025052101
Test Date 2025-05-21
Model / Type Specification HB3
Sample Quantity / No. 3 PCS
Type of Test ■ Reliability Test
Test Standard Internal Standard
Test Purpose Evaluate the noise level of the sample under different operating scenarios
Test Procedure (summary) With the product powered on, measure noise level with the microphone positioned 1 m horizontally from the front face of the product
Acceptance Criterion Evaluate sound pressure level of noise source (Lmax 35–100 dB)
Test Equipment Sound Level Meter (Noise Meter)
Test Conditions Room Temperature: 23 °C; Relative Humidity: 60%

Test Equipment & Setup

Parameter Value
Instrument Sound Level Meter (Noise Meter)
Measurement Quantity Sound Pressure Level (SPL)
Microphone Distance from Product 1 m (horizontal, front face)
Measurement Direction Front face (正面)
Acceptance Band (Lmax) 35 dB – 100 dB
Ambient Temperature 23 °C
Relative Humidity 60%
Product Operating State Powered on (normal operation)

Test Procedure

  1. Pre-test: Confirm ambient conditions are 23 °C and 60% RH. Verify the sound level meter is calibrated and functional.
  2. Sample preparation: Label samples 1#, 2#, and 3#. Place each HB3 hair dryer on a stable surface in the test environment.
  3. Microphone placement: Position the microphone 1 m horizontally from the front face of the product at the same height as the air outlet.
  4. Measurement: Power on the product. Record the maximum sound pressure level (dB) displayed on the noise meter for each sample.
  5. Repeat: Perform the measurement for all three samples in sequence under identical conditions.
  6. Post-test: Power off each sample after measurement. Record all readings in the test data table.
  7. Acceptance criteria: Measured Lmax must fall within 35–100 dB. Final verdict is issued as Pass, Fail, or For Reference Only based on the evaluation.

Test Data & Results

Sample No. Direction Distance from Microphone Noise Level (dB)
1# Front face 1 m 84.0
2# Front face 1 m 83.2
3# Front face 1 m 83.4

Observations: All three samples produced consistent readings within a 0.8 dB spread. The highest recorded value was 84.0 dB (Sample 1#) and the lowest was 83.2 dB (Sample 2#). All values fall comfortably within the evaluated acceptance band of 35–100 dB. No anomalies or outliers were observed during testing. Results are designated For Reference Only per the internal standard classification.

Conclusion

Field Detail
Test Item Noise Level — Sound Pressure Level (SPL)
Standard / Criterion Internal Standard — Lmax 35–100 dB
Test Conditions Front face, 1 m distance, 23 °C, 60% RH, product powered on
Samples Tested 3 PCS (1#, 2#, 3#)
Results 84.0 dB / 83.2 dB / 83.4 dB
Pass / Fail Verdict ☐ Pass (合格)   ☐ Fail (不合格)   ■ For Reference Only (供参考)

Document Information

Role Name (Pinyin) Date
Tested By (测试/日期) Li Guanghua 2025-05-21
Checked By (审核/日期) Zhang Ronggui 2025-05-21
Approved By (核准/日期) Mai Shaoqiang 2025-05-21
Form / Report No. 2025052101 —

Frequently Asked Questions

What noise level did the ETENWOLF HB3 hair dryer measure during testing?

The HB3 measured between 83.2 dB and 84.0 dB at 1 m from the front face during powered-on operation, across all three test samples.

What standard was used for the HB3 noise test?

The test followed ETENWOLF’s internal standard, evaluating sound pressure level against an acceptance band of Lmax 35–100 dB.

Why is the HB3 noise test result listed as ‘For Reference Only’ rather than Pass or Fail?

The internal test classification designated the result as ‘For Reference Only’ (供参考), meaning the data is used to characterize the product’s acoustic performance rather than to certify compliance with a mandatory regulatory limit.

At what distance and direction was the noise measurement taken for the HB3?

The microphone was placed 1 m horizontally from the front face of the product while it was powered on under standard room conditions of 23 °C and 60% relative humidity.

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