1, according to the need to distinguish between home or professional use, most of the hot air gun tool is designed for professional personnel, when shopping, should distinguish between professional and general family tools. Usually the professional and general household hot air gun tool difference in power, large power tools for professional use, to facilitate professionals to reduce the workload, the general household air gun tool because the project is small, the workload is relatively small, so the input power of hot air gun tool rate need not be huge.

2. The outer packing of the hot air gun tool should be clear, without breakage, the plastic box is firm, and the hasp of the plastic box should be firm and durable.

3, hot air gun tool electricity to run a minute, running hand holding hands, there should be no obvious feeling any abnormal fibrillation, observe the commutation spark, the commutation spark should not exceed 3/2, generally from the air inlet tool at the inside, there should be no obvious arc light at the surface of the commutator. There should be no normal noise at the time of operation.

The nameplate parameters of 4, hot air gun tool should be consistent with CCC certificate. The instructions should be the manufacturer and production plant with address and contact. Batch number nameplate or qualified certificate contains product traceability.

5, hot air gun tool appearance should be uniform color, no obvious effect of plastic wire surface and dent, no scratch or bump traces, assembling dislocation between parts of 0.5mm shell, aluminum casting coating is smooth and beautiful without defects, the surface shall be free from dirt and stains.

6. Hold the hot air gun tool by hand, switch on the power supply, operate the switch frequently, make the tool start frequently, and observe whether the on-off function of the tool switch is reliable.