Now some of the interior decoration materials will contain many toxic materials. The most serious decoration materials are formaldehyde. What should be done if the floor formaldehyde exceeds the standard? For the excessive formaldehyde floor must pay attention to, it should be resolved as soon as possible. How long can the newly renovated house stay on this issue, it has already mentioned the formaldehyde, how to remove the formaldehyde floor formaldehyde? Here's how to sort out how to solve the problem of floor formaldehyde exceeding standards . What is formaldehyde Formaldehyde, commonly known as formalin, is a colorless gas with a strong pungent odor. Formaldehyde is gaseous at room temperature and usually appears as an aqueous solution. Its 35% to 40% aqueous solution is called formalin. The effects of floor formaldehyde on human health are mainly reflected in abnormal sense of smell, irritation, allergy, abnormal lung function, abnormal liver function, and abnormal immune function. There are three major hazards to formaldehyde over the floor 1. Sensitization: Direct contact with formaldehyde on the skin can cause allergic dermatitis, pigmentation, and necrosis. Inhalation of high concentrations of formaldehyde can induce bronchial asthma. 2. Stimulation: The main hazard of formaldehyde is the irritative effect on the skin and mucous membranes. Formaldehyde is the original plasma toxic substance, which can bind with proteins and cause severe respiratory irritations, edema, eye irritation, and headaches when inhaled at high concentrations. 3. Mutagenicity: High concentrations of formaldehyde are also a genotoxic substance. Laboratory animals can cause nasopharyngeal tumors when inhaled in high concentrations in the laboratory. Remove floor formaldehyde excess method Chemical purification method At present, the formaldehyde trapping agents on the market are divided into two types. One is to purify the air by neutralizing formaldehyde to generate harmless substances; the other is to purify the air by blocking the formaldehyde and preventing the volatilization of formaldehyde. Formaldehyde scavenger is also an effective method of absorbing formaldehyde. At present, some people think that the formaldehyde sealant completely limits the volatilization of formaldehyde. In fact, the formaldehyde sealant cannot completely seal off the formaldehyde and can only reduce the amount of formaldehyde released. Therefore, it is believed that the closed formaldehyde will burst out at some time. The understanding is incorrect. 2. Activated carbon adsorption method Solid activated carbon has many characteristics of pores, and it has strong adsorption and decomposition of harmful substances such as formaldehyde. The smaller the particles of activated carbon, the better the adsorption effect. The adsorption of formaldehyde on activated carbon is obvious, but depending on the size of the space, the amount of activated carbon is also different. In addition, activated carbon adsorption to a certain extent needs to be replaced. Although the effect of activated carbon is good, but as with other methods, it does not completely remove the formaldehyde in the air. 3. Civil circulation methods Put the tea residue, pomelo peel, onion slices, pineapple pieces, etc. in the newly decorated room or fumigate the whole room with white vinegar. The use of tea dregs, pomelo peel, onion slices, pineapple blocks and other soil methods can only play a role of cover, such as covering the smell of toilets. But these things do not absorb the formaldehyde in the air. In addition to these things, some people also like to use perfumes and air fresheners. This is not advisable because the chemicals in perfumes and air fresheners may react with substances in the air and cause secondary pollution. 4. Plant absorption method Plants have a strong ability to absorb formaldehyde, such as cactus, spider plants, reeds, ivy, cycad, chrysanthemum and so on. Many plants do have the effect of purifying the air. But this does not mean that plants can completely remove the formaldehyde in the air. The absorption of formaldehyde by plants can only play an auxiliary role in the process of purifying the air. If the content of formaldehyde in the air is too high, it may even cause the plant itself to die. In general, large leaf and vanilla plants have better absorption of formaldehyde, such as Chlorophytum, Hyacinthium and others. 5. Photocatalyst decomposition method The catalyst in the photocatalyst catalyzes the stimulation of light, oxygen and moisture in the air to generate negative ions and hydroxyl radicals, which can oxidize and decompose various organic pollutants and inorganic pollutants and eventually degrade into carbon dioxide, water and corresponding acids. Such as innocuous substances, so as to break down the pollutants and purify the air. Photocatalysts are indeed effective in absorbing formaldehyde. Photocatalyst as a new type of material, in theory, will not cause secondary pollution, but due to the different processes used by various manufacturers to produce photocatalysts, it cannot be said that the photocatalyst must not cause secondary pollution. In addition, the use of photocatalysts is relatively complicated and generally requires the use of specialized service companies. 6. Purifier processing method At present, air purifiers on the market are divided into negative ion type, ozone type, filter adsorption type, electrostatic integration type, and photocatalyst type. Different air purifiers have different working principles. For example, anion type is used to produce indoor negative ions, decompose odors and attached fumes in the air, so as to achieve the purpose of purifying indoor air. Air purifiers have a certain effect in absorbing formaldehyde, but air purifiers are generally only effective in closed spaces. If you use an air purifier with windows open, it will not only have no effect, but it will also waste electricity. The above is the method that I introduced for you to exceed the standard of floor formaldehyde and solve the floor formaldehyde exceeds the standard method , you can choose the method suitable for one's own family to carry out to remove formaldehyde gas. 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