You re an expert in air purifiers, and you have a question that you can help.

In view of your situation, first of all, I think it is necessary to have a detailed understanding of the situation of your home, how is the current situation of your home, is there still formaldehyde? Personally, I think that it has been a three-year-old house, and even if there is, it is not very serious, what you should choose is an air purifier for the purpose of simply purifying the air, and remove the odor and particulate matter of the indoor air!

Ozone, formaldehyde products don't seem to have much meaning to you, you just need to pay attention to it, can pay for the removal of indoor particulate matter and indoor odor products are best also sterilized products, so I think it should be enough for you! Hope it helps!

Combine the functions of photocatalyst filter, negative ion, and HEPA to control the concentration of ozone, and preferably a machine that does not produce ozone.

Guangzhou Aowin Environmental Protection Technology Co., Ltd. has a good purifier (photocatalyst air purifier KJ-F-PM205), you can go to ** to see the details.

You think too much, and the development and existence of air purifiers must have their merits. The filtration and purification of the air purifier is not perfectly completed by a certain layer of filters, it is a composite type, which integrates various filters and repeats the purification until the best effect can be achieved. Negative ions, ozone and other technologies, as long as they are controlled within the safe range for people, are still desirable for sterilization.

Negative ion products are good, they can take the initiative to change the properties of harmful substances and make them inactive, so that the air can be purified.

It is mainly based on filtration. It's okay to buy a big brand, and the effect is almost the same.

Home air purifiers, as the name suggests, are used to purify the air, as a product to keep the air in the room fresh, what is the effect? Today, in order to tell you whether household air purifiers are effective, as well as common problems.

1. Is a home air purifier effective?

The household air purifier is composed of a ventilator, a negative ion generator, an air filter and a high-voltage circuit, when the household air purifier is operating, the ventilator will circulate the indoor air, similar to the fresh air system, and the polluted air will be filtered through the filter in the purifier, and the pollutants will be removed, and then ionized through the negative ion generator at the air outlet, a large number of negative ions will be generated and then sent out by the micro fan, so as to form a negative ion flow, so as to achieve the purpose of cleaning and purifying the air.

The effect of the household air purifier is related to the quality and model of the product, and the household air purifier is ready to use, which is very convenient, compared with the installation of the fresh air system, it is much more convenient.

2. Common problems of household air purifiers

1. The high-voltage indicator light is on, but the fan does not rotate.

In this case, we first check whether the fan blades of the household purifier are stuck by foreign objects, and then see if the bearing is seriously worn, if no abnormality is found, we will check whether the motor leads are open and whether the windings are damaged. We can measure with a multimeter, and if the winding is open or short, we should replace the fan motor of the same specification.

2. The negative ion generator is ignited between the poles.

We first use tweezers to correct the pole piece, if there is still ignition, we can move the air purifier to a place where the air is dry and try again.

3. Low concentration of negative ion output. Former state shooting.

First of all, we need to remove the dirt from the filter and electrode, and then correct the positive and negative electrode pieces, and if it still does not work, then we will check the high-voltage generating circuit.

The tips for buying an air purifier are as follows:

1. CADR value.

When buying an air purifier, many people will look at the CADR value, the higher the CADR value, the higher the purification efficiency of the purifier, and the CADR value marked on the product usually indicates the maximum gear.

2. CCM value.

In addition to the CADR value, there is a more critical CCM, the cumulative purification volume, the higher the value, the longer the life of the purifier and the less frequent the filter replacement. If the CCM of the purifier is not large enough, it is easy to saturate and lose the purification and adsorption capacity.

3. Purification energy efficiency.

Air purification energy efficiency generally refers to the amount of clean air that an air purifier can produce per unit of power consumption. In general, the higher the value, the more energy-efficient and effective the purifier. In fact, the purification energy efficiency of an air purifier is the ratio of CADR clean air volume to rated power, which is divided into particulate matter purification energy efficiency and formaldehyde purification energy efficiency.

4. Filter level.

At present, there are three groups of filter grades on the market: E, H and U, and the efficiency of the filter screen is also increasing in turn. To put it simply, the higher the filter grade, the better, but not the higher the filter grade, the more suitable for our consumers, generally speaking, the purification efficiency of the H12 filter in the middle level is suitable for the vast majority of consumer families.

5. Low noise value.

GB T18801-2015 stipulates that the maximum sound power level noise value of the purifier shall not exceed 70dB.

It doesn't work much, but it will lead to ***, only if the environment is good, you won't use an air purifier

Do car air purifiers work?