First of all, use "three good" to weigh whether the value of the purifier circuit board is worth choosing. There are many purifier circuit boards in the industry. Many people evaluate whether the purifier circuit board is worth choosing from the aspect of quality. We must pay attention to not only the quality of the circuit board. Manufacturers may not care about any follow-up services, and there will be many such situations.

　　But for dealers, if the manufacturer doesn't care about everything and relies on you to run and do the industry, it will not last long, and it is also unreliable. It is difficult for the manufacturer to make a difference in the industry without follow-up services. It can only be used as an opportunistic purifier circuit board, and must not be operated as a main purifier circuit board.

　　1. The purifier circuit board should be a good manufacturer: it must be a manufacturer that you can trust, a manufacturer with credibility and reputation, so that you will not be distracted by the after-sales service of the manufacturer.

　　2. The purifier circuit board should have a good brand: a brand with a certain brand influence and foundation, not a new brand or a brand without foundation.

　　3. Good products: A good purifier circuit board determines the industry and the future. To measure whether a purifier circuit board is good or not, you must first look at the packaging, concept and quality, and then look at the price and profit. If the quality is excellent and the profit is good, then you can choose.