How to choose an air purifier?

In order to breathe fresh air, people living in cities have taken great pains. Various air purification devices have emerged one after another, from all brands. Faced with a wide variety of air purifiers, consumers may encounter difficulties when purchasing them. After all, they are not professionals and cannot understand the above parameters at all. So the question is, how to choose an air purifier?

Look at the brand: within your financial capacity. Generally speaking, foreign brands are of better quality than domestic ones, but they are relatively more expensive. When purchasing domestic brands, pay attention to whether the after-sales service is good and whether there are specially matched filters. When purchasing online, choose brands and models that are available both online and in physical stores.

Look at the purification capacity: check the CADR value of solid pollutants in the product. The higher the value, the stronger the ventilation capacity. Under the same area, it takes less time to filter the air in the room, and the purification capacity is better.

Cumulative purification capacity (CCM value): If both the CCM value and the CARD value are high, the air purifier not only has a strong purification ability, but also has a stronger purification endurance, which means that the purification life is longer.

Look at the noise level: The noise level is the volume generated when the air purifier reaches the maximum CADR value. The lower the noise generated by the machine when it is running, the better, but often the greater the air volume, the louder the noise. Because the air purifier also needs to run at night, when choosing, be sure to choose one with low noise decibels.

Look at the filter function: a simple single-layer filter can only filter PM2.5. There are also three-layer or multi-layer ones that can filter PM2.5, formaldehyde, etc. The more functions a filter has, the more expensive it is. Filters have a certain life cycle, so choose the appropriate one based on economic cost and specific needs.

Look at other additional functions: Some air purifiers come with humidification, ultraviolet, pollen removal and other functions. These functions are actually not very practical, and the effects are indeed not ideal. In addition, there is a smart WiFi function, which is useful. You can turn on the air purifier before returning home.