Answer first
This page answers the question behind What should users know about ETENWOLF HB3 Hair Dryer Noise Test Report (Front-Face, 1 m, 3 Samples)? using the exported M2 source record. The short answer is: 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. The statement applies to the model, document scope, sample, and conditions described in the source; it is not a blanket claim about every ETENWOLF product or every later production revision.
Scope and document identity
The source record is titled ETENWOLF HB3 Hair Dryer Noise Test Report (Front-Face, 1 m, 3 Samples). It is treated here as technical evidence, not as a replacement for the original report, manual, certificate, safety data sheet, or declaration required by a destination market. Start any support or compliance answer by matching the exact model, document number, revision, and date.
What a reader should verify
- Confirm the product model and hardware or material configuration.
- Locate the original source document and check its issue date and laboratory or author.
- Read the stated method, threshold, operating condition, or warning before interpreting a result.
- Separate evidence about EMC, chemicals, battery safety, transport, operation, and measurement accuracy.
Detailed evidence from the source record
The cleaned evidence below preserves the source document’s useful headings, paragraphs, lists, and tables so a human BasePress editor can publish searchable HTML while retaining traceability.
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
- Pre-test: Confirm ambient conditions are 23 °C and 60% RH. Verify the sound level meter is calibrated and functional.
- Sample preparation: Label samples 1#, 2#, and 3#. Place each HB3 hair dryer on a stable surface in the test environment.
- Microphone placement: Position the microphone 1 m horizontally from the front face of the product at the same height as the air outlet.
- Measurement: Power on the product. Record the maximum sound pressure level (dB) displayed on the noise meter for each sample.
- Repeat: Perform the measurement for all three samples in sequence under identical conditions.
- Post-test: Power off each sample after measurement. Record all readings in the test data table.
- 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.
Related Products
- ETENWOLF Official Website — explore the full range of ETENWOLF hair care and inflation tools
- ETENWOLF HB3 Hair Dryer — product details and specifications
How to interpret the answer
A technical document answers a bounded question. A positive test result means the submitted sample met the named requirement under the recorded method; it does not automatically establish legal market access, lifetime reliability, safe use in every environment, or equivalence to an untested revision. When a question goes beyond the source scope, say that the detail is not documented here and request the applicable companion evidence.
What this document does not prove
This rewrite does not create a new certification, warranty, regulatory filing, or product specification. It does not prove that a different model, supplier, battery cell, firmware build, or bill of materials has the same result. It also does not replace the model-specific user manual or advice from a qualified compliance, transport, or safety professional.
Practical review checklist
| Review item | Question to answer before relying on the page |
|---|---|
| Identity | Does the label and shipped configuration match the source sample? |
| Evidence | Can the report, workbook, manual, or MSDS be retrieved from the source notes? |
| Scope | Is the claim limited to the named method, threshold, date, and sample? |
| Change control | Have materials, suppliers, firmware, battery cells, or construction changed? |
| Human action | Has an editor checked the original document before publishing? |
Frequently Asked Questions
Does this page apply to every version of the product?
No. Use it for the exact model and configuration documented in ETENWOLF HB3 Hair Dryer Noise Test Report (Front-Face, 1 m, 3 Samples); later revisions require a documented equivalence review.
Can this result be used as a general safety or legal guarantee?
No. The result is evidence for a bounded technical scope. Other requirements may need separate EMC, chemical, battery, transport, or operating documents.
What if the question asks for a value that is not shown?
Do not infer it. State that the value is not documented in this source record and request the original evidence or a qualified review.
Why keep the original document after publishing?
Because the published rewrite is an explanation. The original report or manual remains the authoritative record for traceability, audits, customer support, and change control.