Consumers should choose the type and size of the fan according to the installation site and the specific use of the wind turbine. Secondly, according to the required performance requirements, the size of the wind pressure and other design requirements. Consumers in the purchase of products to the fan manufacturers to carry out on-the-spot investigation, inspection should focus on the following aspects:

1 production parts, such as motor, blades and shaft meets the requirements, whether the manufacturer for sampling and testing according to the batch of raw materials into the plant parts, such as outsourcing, quality documents to check raw materials and sampling inspection report.

The 2 is to examine whether the appearance quality of the product inventory with JB/T 10562-2006 or JB/T 10563-2006, to check the manufacturer of product self inspection report and examine the production factory testing equipment and testing personnel certificate.

3 in the process of investigation should also pay attention to monitoring tools manufacturers in the product production process is effective, the key lies in the measurement and measurement methods for raw materials in the production process, product maintenance, accuracy of raw materials and products in the production process of ledger inspection and unqualified products processing method.

4 on the occasion of personal and equipment safety, such as the generator cooling, cooling tower cooling, plant ventilation, it is recommended before the purchase of the product to the authority of the inspection agency to check the performance parameters.

5 national development and Reform Commission, the State General Administration of quality supervision and the National Commission has jointly issued a document requiring all the production, sale and import of ventilation machines in China must add energy efficiency labeling. Users in the purchase of the fan, we must pay special attention to whether the product has affixed to energy efficiency labeling, only affixed with energy efficiency labeling of the ventilator is reliable and energy-saving, so that it can be assured that use.