All filters are used to protect generator parts, clean and prolong the service life of the generator. Judging whether the filter is good or bad is not correct from the surface of various filters and the length of use of the filter. To judge the quality of the filter, the following aspects should be considered first:

1. Filter paper quality

The quality of filter paper is related to the efficiency of the filter. There are more impurities, iron chips and dust in the system filtered by the filter paper with good quality. The filter paper with poor quality has less impurities, iron chips and dust in the system, If it doesn't play a protective role, the relevant parts of the generator are easy to grind

Loss.

2. Filtration efficiency of filter

It is mainly determined by the quality of the filter paper used in the filter. The filter efficiency of the filter is more than 96% before it is qualified. At the same time and in the same place, the effect of different manufacturers' filters is not the same. It is obviously different from the master's feeling of the engine and the exhaust smoke of the generator during the starting and driving of the engine, There are obvious differences in wear and tear of engine parts during engine repair.

3. Adhesive material of filter paper and end cover

With a good quality filter paper, there are also good quality adhesives, such as improper selection, the filter paper in the filter and the upper and lower covers are not firmly adhered to the platform, the oil is easy to fall off in the process of use, no stickiness, resulting in short circuit, can not play a filtering role.

4. Guarantee of production process

From the surface, under the filter paper between the filter paper can not be adhered, must be in the light to see light transmission. If there is no light transmission in the light, the adhesion between the filter paper will affect the flow of the whole air filter, and the service life is short, resulting in insufficient power and not easy to remove dust in the cleaning process. A good air filter is the filter paper, which is not adhesive and has strong light transmittance. It is suitable for the air intake standard of generator set, with long service life and easy cleaning.