Why do we need to remove formaldehyde at home?
Date: 2021-11-08 Categories: Industry News Hits: 158
Formaldehyde caused by home decoration is the most troublesome. Many methods of removing formaldehyde have emerged, and air purifiers are among them.
There are also different opinions on the effect of air purifiers to remove formaldehyde, and many people are confused about it!
Today, let's learn about formaldehyde; what is it? and how to remove it.
To remove formaldehyde, we must first understand what formaldehyde is and under what circumstances will formaldehyde cause harm to the human body?
Let’s look at the first one
What is formaldehyde?
To remove formaldehyde, we must first understand, what is formaldehyde? Under what circumstances will formaldehyde be harmful to the human body?
Formaldehyde is an organic chemical substance with the chemical formula HCHO. It is a colorless and irritating gas, which is irritating to human eyes and nose. Formaldehyde is easily soluble in water. 37% formaldehyde solution is commonly known as formalin.
On October 27, 2017, in the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization, formaldehyde was included in list of carcinogens.
Simply, formaldehyde is toxic and cancerous!
Under what circumstances does formaldehyde cause harm to the human body?
·The indoor formaldehyde safety range is within 0.08mg. If the formaldehyde in the home exceeds this value, it will cause harm to the human body, but the harm of formaldehyde is also graded:
l When the formaldehyde is 0.08mq-0.1mg, people will feel uncomfortable in their throats and cough. At this time, they usually don't take it seriously, and they may think that they have a cold.
l When formaldehyde is 0.2mg-0.5mg, it is already very dangerous at this time. It will cause the human immune system and endocrine disorders, and there is a greater risk of cancer. At this time, you regret it!
l When the formaldehyde reaches more than 20mg, it can kill people directly; but the concentration at home is generally not up to this standard. The first two conditions are also very serious!
After understanding these two problems, the formaldehyde problem is half resolved, but you can’t blindly choose a method when removing formaldehyde, otherwise, it is likely to cause inexhaustible removal of formaldehyde. The following are effective methods of removing formaldehyde, you can choose according to your actual situation!
Opening windows for ventilation is the most commonly used method to remove formaldehyde, and it is also the only one that is zero cost. Some people say that it can be ventilated every day. Why do other methods need to be done? Because ventilation is also limited, especially for houses with poor layouts. It is difficult to remove formaldehyde by opening windows, and ventilation can only remove the formaldehyde that has been released. The formaldehyde deep into the board cannot be removed by ventilation. In addition, pay attention to the weather when ventilating, and when encountering strong winds and heavy rains, remember to close the window in time
Plants---economical and beautiful
Many plants have the function of purifying the air, such as green radish, cactus, ivy, etc., but plants need to be used in large quantities to effectively absorb indoor formaldehyde. If you just put three or five pots, the effect is not great. This method is only suitable for formaldehyde concentrations below 0.1mg. It is not suitable for use if it exceeds this value, but even if the plant has a limited ability to absorb formaldehyde, it is still very pleasing as a decoration.
Air Purifier—-Petty Bourgeois Removal of Formaldehyde
Most air purifiers can isolate indoor particles of different diameters through filters, which can quickly achieve the purification effect. However, decoration pollutants are gaseous pollutants, and their diameter is much smaller than that of particulate pollutants. Therefore, most air purifiers are useless to remove hazardous substances such as formaldehyde benzene, benzene, etc. so you must be cautious when choosing. It is more reliable to choose products marked with the function of "removable formaldehyde".
Activated carbon—- loves and hates
Activated carbon, as a small expert in indoor air purification, is still used by many people. The diameter of the micropores on the surface of activated carbon is mostly between 2-50nm. Even a small amount of activated carbon has a huge surface area. The surface area of activated carbon per gram is 500~ 1500m2, it is precise because the activated carbon has a developed pore structure that it can adsorb formaldehyde, benzene, TVOC, and other harmful substances in the indoor air to a certain extent. However, the problem that activated carbon is easy to saturate has not been solved, and it has caused many problems.