At present, the state has strict restrictions on the release of harmful substances. Building materials are subject to the Ten Standards for Restriction of Hazardous Substances. In terms of decoration, the “2005 new home improvement contract†has already considered the indoor air as a qualified part of the evaluation of the quality of decoration. Ensure the owners' health benefits.
In accordance with GB18883-2002 "Civil Construction Project Indoor Environmental Pollution Control Regulations" to implement the test, issued by the CMA authoritative inspection report.
GB18883-2002 specifies five pollutants limited value
| Pollutants | Class I civil construction | Class II civil construction |
| Formaldehyde (mg/m3) | ≤0.08 | ≤0.12 |
| Benzene (mg/m3) | ≤0.09 | ≤ 0.90 |
| Total volatile organics TVOC (mg/m3) | ≤ 0.50 | ≤0.60 |
| Ammonia (mg/m3) | ≤0.20 | ≤ 0.50 |
| 氡(Bq/m3) | ≤200 | ≤400 |
Class I civil buildings include (housing, hospitals, aged buildings, kindergartens, school classrooms, etc.)
Class II civil buildings include (office buildings, shops, hotels, cultural and entertainment venues, bookstores, libraries, exhibition halls, gymnasiums, public transport waiting rooms, restaurants, hairdressers, etc.)
How to remove formaldehyde?
First, open the ventilation method.
When opening windows and doors to release formaldehyde odor, pay attention to the time and method, otherwise it will cause wall cracking, affecting the decoration effect. Open one or two windows as much as possible when you open the door, do not open the doors and windows, the air flow is too large, and it is unfavorable for the wall decoration. When you open the window, it is best to choose morning and evening, try to avoid the sunny noon, to prevent the wall from bursting with sunlight and strong sun.
Second, the clear water absorption method.
Put a few pots of clear water in the renovated new house. Put vinegar, scallions, orange peels, etc. in the water to protect the wall top paint surface by evaporation, and absorb the residual formaldehyde odor in the room. Clear water twice a day.
Third, the plant purification method.
The most common houseplants are: Aloe Vera, Chlorophytum, Sansevieria, One-leaf Blue and Monstera, which can remove harmful substances in the air, especially formaldehyde. Studies have shown that Sansevieria and Chrysanthemum can absorb more than 80% of indoor harmful gases. Aloe vera is also a good absorber of formaldehyde and can absorb 90% of the formaldehyde contained in 1 cubic meter of air. Tequila, evergreen, daisies and the like can also absorb trichloroethylene in the air.
Fourth, activated carbon absorption method.
Activated carbon can adsorb indoor formaldehyde and other harmful gas molecules, and at the same time, it can regulate catalytic properties, inhibit the spread of epidemic pathogens, and have comprehensive functions such as detoxification, smoking, deodorization, dehumidification, mildew proofing, sterilization, and purification. At present, there are various activated carbons on the market, which are placed in the home for years of deodorization and sterilization. The only downside is that when they are adsorbed to a certain degree, they will saturate and need to be replaced in time.
Fifth, fruit absorption method.
Some tropical fruits, such as oranges and pineapples, have a strong aroma and are deodorised on the inside. The effect is very obvious. In addition, you can buy a few pots of green plants with fruit bonsai, such as kumquats, melons, pumpkins, etc. on the inside, you can deodorise, but also release the fragrance, can be described as multiple purposes.
Photocatalytic 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.
New home environmental protection testing in addition to formaldehyde formaldehyde window interior decoration home decoration paint
Pvc Welded Wire Mesh,Hot-Dipped Galvanized Welded Wire,Pvc Coated Wire Mesh,Pvc Coated Welded Wire Mesh
Shenzhou City Hongda Hardware Products Co.,Ltd , https://www.hdgabion.com