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07-21

2022

Long service life of filter screen

Cost performance ratio has become the main keyword when consumers choose a product today. Cost performance ratio is the ratio of the performance value to the price value of a commodity, and it is a quantitative measurement that reflects the degree of purchasing goods. The full name of the so-called cost performance ratio is the performance price ratio, which is a proportional relationship between performance and price. The specific formula is: cost performance = performance / price. Generally, there are few opportunities for comparison. Although there are specific calculation formulas for cost performance, the performance of many goods cannot be quantified and difficult to calculate. So, how can we judge the cost performance of products whose performance cannot be quantified?

07-21

2022

How to maintain the filter screen of air purifier

According to the operating principle, air purifiers can be roughly divided into active, passive and composite modes. The three modes have their own advantages and disadvantages. However, according to the overall product preference of major brands, composite air purifiers occupy most of the market.

07-21

2022

Do you know the four parameters of air purifier

After the epidemic, people's understanding of air purifiers has taken a step closer. The search volume of sterilized air purifiers on the market has soared, and all kinds of air purifiers have become daily necessities.

07-21

2022

How to choose an air purifier, the more expensive the better? Master a few points, and you will pick after reading!

Cost performance ratio has become the main keyword when consumers choose a product today. Cost performance ratio is the ratio of the performance value to the price value of a commodity, and it is a quantitative measurement that reflects the degree of purchasing goods. The full name of the so-called cost performance ratio is the performance price ratio, which is a proportional relationship between performance and price. The specific formula is: cost performance = performance / price. Generally, there are few opportunities for comparison. Although there are specific calculation formulas for cost performance, the performance of many goods cannot be quantified and difficult to calculate. So, how can we judge the cost performance of products whose performance cannot be quantified?

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