1, ventilation. Ventilation is the simplest and cheapest, with good effect. The disadvantage is that formaldehyde is not removed fundamentally, but the free formaldehyde that has been released into the air is discharged. Because formaldehyde is continuously released, it must be ventilated 24 hours a day. Once the windows are closed, such as heating in winter and air conditioning in summer, the indoor formaldehyde concentration will soon exceed the standard. The formaldehyde release period is 5- 15 years. How many years can it be ventilated?

2. Activated carbon. The special structure inside activated carbon can quickly absorb harmful substances in the air. The disadvantage is that it is very easy to saturate, and it usually needs to be replaced in a week. Similar to sponge absorbing water, formaldehyde is only stored in another place, and the absorbed formaldehyde may be released again. Then can you change your activated carbon bag once a week?

3. Onions, fruit peels, balsamic vinegar, etc. This is a cover-up. CCTV has also made rumors, but it has covered up the original flavor with special flavors such as onions, and indoor pollutants have not decreased.

4. Green plants. Green plants are widely used by us. They can not only absorb harmful substances, but also have beautiful effects. However, if you only expect green plants to carry out in addition to formaldehyde, then you need to fill the room, and the effect is only very insignificant. So I'm sorry to tell you that none of the above methods are satisfactory.

There is no good way. There is only one effective and cost-free method, that is, window ventilation. Don't believe that merchants brag about their products so much. The actual effect is not so good. Can cooperate with other well-known methods to put green plants and put green plants to absorb formaldehyde. The effect is not so ideal, but it doesn't hurt to decorate the indoor space. In addition, the air purifier can also be used as an aid, that is, it is a bit troublesome to switch when the noise is slightly louder. If you buy an air purifier, you can buy one that can absorb formaldehyde. Other cheaper ones are just filtering the free gas of PM2.5. I don't know what kind of water spray. I should seal formaldehyde and harmful gases in the furniture. I don't know much about it. I don't evaluate it. Activated carbon can be placed in places with poor ventilation. But don't blindly believe the in addition to formaldehyde 100% activated carbon advertised by merchants. Can only adsorb what cannot be decomposed. Opening the window for ventilation is king. I sell activated carbon. I just put some in my home when I was decorating, and it was all over the house.