Document Overview
Key Findings The ETENWOLF Air3 hair dryer successfully passed a 72-hour high/low temperature storage test with no appearance anomalies and all button functions operating normally after exposure to extreme thermal conditions. Product: TB1 (Air3 hair dryer) Manufacturer: BTK Sample Quantity: 3 pcs High-Temperature Condition: 60…
- Document type
- Test Report
- Prepared by
- Alex Newman
- Published
- Last reviewed
- Topics
- Environmental Testing
Key Findings
The ETENWOLF Air3 hair dryer successfully passed a 72-hour high/low temperature storage test with no appearance anomalies and all button functions operating normally after exposure to extreme thermal conditions.
- Product: TB1 (Air3 hair dryer)
- Manufacturer: BTK
- Sample Quantity: 3 pcs
- High-Temperature Condition: 60 °C, 80% RH, 4 hours
- Low-Temperature Condition: −20 °C, 4 hours
- Total Storage Duration: 72 hours
- Test Dates: 2025-03-08 to 2025-03-11
- Overall Verdict: Pass
Test Overview
| Field | Details |
|---|---|
| Test Type | High/Low Temperature Storage Test |
| Report Number | 2025031101 |
| Page | 1 |
| Test Dates | 2025-03-08 to 2025-03-11 |
| Product Name | TB1 (Air3 Hair Dryer) |
| Manufacturer | BTK |
| Surface Treatment | / |
| Sample Quantity | 3 pcs |
| Test Reason | New product qualification |
| Test Purpose | Evaluate the durability of the prototype unit when stored in extreme temperature environments |
| Laboratory Temperature | 24 °C |
| Laboratory Humidity | 45% RH |
Test Equipment & Setup
| Item | Details |
|---|---|
| Instrument | Constant Temperature and Humidity Testing Machine |
| Test Class / Level | — |
| Condition 1 — High Temperature | 60 °C, Humidity 80% RH, Duration 4 hours |
| Condition 2 — Low Temperature | −20 °C, Duration 4 hours |
| Total Storage Duration | 72 hours |
| Post-Storage Functional Test | Required |
| Acceptance Requirement | No functional abnormalities after testing |
Test Procedure
- Pre-test preparation: Record laboratory ambient conditions (temperature 24 °C, humidity 45% RH). Confirm 3 sample units are in normal operating condition. Document report number 2025031101.
- High-temperature phase: Place samples in the constant temperature and humidity testing machine. Set chamber to 60 °C and 80% RH. Maintain for 4 hours.
- Low-temperature phase: Adjust chamber to −20 °C (no humidity control required). Maintain for 4 hours.
- Extended storage: Continue cycling/storage in the chamber for a total cumulative storage duration of 72 hours as programmed in the controller profile.
- Post-test functional verification: Remove samples from chamber. Allow units to return to ambient conditions. Power on each unit and verify normal startup. Test all button functions. Verify airflow pressure (wind pressure) is within normal range.
- Acceptance criteria: No appearance anomalies; all button functions normal; wind pressure OK. Any failure on any sample constitutes a Fail verdict.
Test Data & Results
| Check Item | Requirement | Observation After 72 h Storage | Result |
|---|---|---|---|
| Unit Power-On | Normal startup after test | All 3 samples powered on normally | Pass |
| Button Functions | All buttons functional | All button functions normal on all samples | Pass |
| Appearance / Exterior | No anomalies | No appearance anomalies observed | Pass |
| Wind Pressure (Airflow) | Normal / OK | Wind pressure OK | Pass |
Summary observation (translated from report): After 72 hours of high/low temperature storage testing, the sample exterior showed no anomalies, all button functions were normal, and wind pressure was OK. The unit could power on normally after the test; all button functions performed correctly per the program control profile.
Conclusion
| Field | Details |
|---|---|
| Result Statement | After 72-hour high/low temperature storage, sample appearance showed no anomalies, all button functions were normal, and wind pressure was OK. |
| High-Temperature Condition | 60 °C, 80% RH, 4 hours |
| Low-Temperature Condition | −20 °C, 4 hours |
| Total Storage | 72 hours |
| Samples Tested | 3 pcs |
| Judgment | Pass (■ 合格) |
Document Information
| Role | Name (Pinyin) |
|---|---|
| Approval (核准) | — |
| Review / Check (审查) | Mai Shaoqiang |
| Tester (试验人) | Zhang Ronggui |
| Form Number (表单编号) | BTK-R-Q-087A/1 |
Frequently Asked Questions
What temperature conditions were used in the ETENWOLF Air3 high/low temperature storage test?
The Air3 was tested at 60 °C with 80% relative humidity for 4 hours (high-temperature phase) and at −20 °C for 4 hours (low-temperature phase), with a total cumulative storage duration of 72 hours inside a constant temperature and humidity chamber.
Did the ETENWOLF Air3 pass the high/low temperature storage test?
Yes. All 3 sample units passed. After 72 hours of high/low temperature storage, the Air3 showed no appearance anomalies, all button functions operated normally, and airflow pressure was confirmed OK.
What equipment was used to conduct the Air3 temperature storage test?
A constant temperature and humidity testing machine was used. The laboratory ambient conditions during the test were 24 °C and 45% RH. The test was conducted from 2025-03-08 to 2025-03-11 at BTK’s facility.
How many samples of the Air3 were tested in the high/low temperature storage test?
Three (3) samples were tested. All three units demonstrated normal power-on behavior, normal button functionality, and acceptable wind pressure after the full 72-hour storage cycle.