Newly renovated houses and newly bought furniture are always full of expectations, but at the same time, they are accompanied by concerns about formaldehyde pollution. In the face of formaldehyde pollution, many people are eager to find solutions, but among the many formaldehyde removal methods, which ones are really effective?Today, let's unveil the mystery of the formaldehyde removal method together. 
First, the basic knowledge of formaldehyde
1.What is Formaldehyde?Formaldehyde, with the chemical formula CH2O, is a colorless, pungent odor gas, soluble in water at room temperature, aqueous solution, also known as formaldehyde is widely present in nature, plants, animals and microorganisms can produce formaldehyde. 2.The use of formaldehyde formaldehyde has the functions of antiseptic, sterilization, and protein fixation, so it is widely used in industry, agriculture, medicine and other fields. In the home furnishing field, formaldehyde is mainly used as an adhesive for the production of plates, furniture, coatings and other products. 3.Formaldehyde (1) Home decoration: Artificial panels, coatings, adhesives, etc. in decoration materials contain formaldehyde, and the release period is as long as 3-15 years. (2) Automobile interior: formaldehyde is contained in car seats, interior panels and other materials, especially in new cars. (3) Daily necessities: Some daily necessities such as clothing, toys, and tableware also contain formaldehyde. 
2. Methods and principles of formaldehyde removal1.Physical adsorption methodPhysical adsorption method is to use the adsorption properties of certain substances to remove formaldehyde from the air. Commonly used adsorbents include activated carbon, diatom mud, molecular sieve, etc. These adsorbents have a large specific surface area and pore structure, which can adsorb formaldehyde molecules in the air. However, the adsorbent has a limited adsorption capacity and needs to be replaced regularly. 2.Chemical decomposition methodThe chemical decomposition method is to decompose formaldehyde into harmless substances by adding chemical agents and chemical reactions with formaldehyde. Commonly used chemical agents include photocatalysts, biological enzymes, formaldehyde scavengers, etc. These chemicals can catalyze the decomposition of formaldehyde, or adsorb and react with formaldehyde, thereby reducing indoor formaldehyde concentrations. However, chemicals have a limited lasting effect and need to be added regularly. 3.Biodegradation methodThe biodegradation method uses the metabolic action of microorganisms to convert formaldehyde into harmless substances. Commonly used biodegradation methods include biological filters, biological enzyme sprays, etc. These biodegradation methods convert formaldehyde into carbon dioxide and water through the metabolic action of microorganisms. However, the treatment effect of biodegradation method is greatly affected by environmental conditions, and it is necessary to maintain appropriate temperature and humidity. 4.Ventilation methodThe ventilation method is to ventilate the indoor formaldehyde pollutants outdoors by opening windows for ventilation. This is a simple and effective way to remove formaldehyde, but it needs to be done frequently and is affected by the quality of the outdoor environment. 
3. Advantages and disadvantages of various formaldehyde removal methods1.Physical adsorption method: the advantage is that it is simple and easy, and the disadvantage is that the adsorbent adsorption capacity is limited and needs to be replaced regularly. 2.Chemical decomposition method: the advantage is that the treatment effect is good, and the disadvantage is that the continuous effect of chemical agents is limited and needs to be added regularly. 3.Biodegradation method: the advantage is that it is environmentally friendly and pollution-free, and the disadvantage is that the treatment effect is greatly affected by environmental conditions, and it is necessary to maintain a suitable temperature and humidity. 4.Ventilation method: the advantage is that it is simple and effective, but the disadvantage is that it needs to be carried out frequently and is affected by the quality of the outdoor environment. 
Fourth, how to choose the appropriate formaldehyde removal methodWhen choosing a formaldehyde removal method, the following aspects need to be comprehensively considered:1.Formaldehyde pollution degree: According to the indoor formaldehyde concentration and pollution source, choose the appropriate formaldehyde removal method. 2.Treatment objectives: According to the treatment objectives, such as rapid removal of formaldehyde in the short term or long-term maintenance of indoor air quality, select the appropriate formaldehyde removal method. 3.Economic conditions: According to personal economic conditions, choose the appropriate and affordable method of removing formaldehyde. 4.Environmental conditions: According to indoor and outdoor environmental conditions, such as temperature and humidity, outdoor air quality, etc., choose the appropriate formaldehyde removal method. 
V. ConclusionThere are many ways to remove formaldehyde, and each method has its advantages and disadvantages. When choosing a formaldehyde removal method, it is necessary to comprehensively consider factors such as the degree of formaldehyde pollution, treatment objectives, economic conditions and environmental conditions, and choose the appropriate formaldehyde removal method. At the same time, we also expect relevant departments and enterprises to increase the research and development and productivity of environmentally friendly materials, and provide consumers with more green and healthy products. Start planning for my 2024