After the house is completed, many people choose to stay for at least six months to allow harmful gases—especially formaldehyde—to dissipate. As we all know, formaldehyde can take up to 15 to 20 years to fully evaporate. If the renovation isn’t done properly, it’s hard to ensure that the levels of formaldehyde remain within safe limits. So, how can we effectively prevent indoor formaldehyde pollution? Let’s explore some practical tips.
**Control the Source: Use Environmentally Friendly Materials**
The first step in preventing indoor air pollution during home improvement is to control the source. Using building materials that meet national environmental standards and have low emissions is a key strategy. For instance, choosing paints and adhesives that are eco-friendly can significantly reduce benzene levels in your home. Similarly, opting for pre-baked wood products helps minimize formaldehyde release.
Why don’t old furniture cause formaldehyde issues? Because traditional wood was often transported by water, which helped absorb and release formaldehyde. Modern furniture, on the other hand, is usually shipped in sealed containers and processed quickly, leading to higher formaldehyde retention. Many manufacturers use excessive glue to speed up production, making it harder for the gas to escape. This can lead to air quality problems once the furniture is brought into your home.
When purchasing furniture, look for products that meet national standards and ask for the "Furniture Decoration Instructions" to check the formaldehyde content. Pay attention to the materials used—wooden furniture with a high degree of sealing is preferable. Avoid rushing new furniture into your home; let it off-gas as much as possible before using it. When using newly bought particleboard furniture, avoid storing sensitive items like children’s clothes or undergarments. If you experience symptoms like eye irritation, skin allergies, or persistent coughing, it could be due to formaldehyde exposure, and prompt action is essential.
**Simple Renovation: Avoid Over-Decorating**
Home improvement should focus on practicality and simplicity. Excessive decoration can create a "pollution stacking effect." For example, some homeowners install solid wood flooring along with an extra layer of blockboard underneath for better stability. While this may feel more comfortable, it can also trap formaldehyde from the blockboard, which then spreads through the wooden floor. Fixing this issue later can be costly.
Similarly, using multiple types of wall coverings or wallpapers may seem stylish, but it can lead to high formaldehyde levels. These materials require a lot of adhesive, which not only hinders the evaporation of toxic gases but can also trap them. Some companies offer cheap glue to customers, thinking it's a cost-saving move, but poor-quality adhesives can be even more harmful in the long run.
In your design plan, consider the space’s ventilation and capacity. Use non-toxic or low-toxic construction methods wherever possible. For example, paint the edges of artificial boards thoroughly to help release formaldehyde. Always select interior decoration materials that meet national safety standards, as there are currently ten mandatory regulations governing harmful substances in such materials.
**Ventilation and Humidification: A Natural Way to Reduce Formaldehyde**
One of the most effective and simple ways to reduce indoor pollutants is to increase ventilation. Letting fresh outdoor air circulate through your home helps dilute harmful gases and improve air quality. If possible, invest in a humidifier to raise indoor humidity, which can also aid in absorbing formaldehyde. If a humidifier isn't an option, placing several pots of water around your home can work too—but remember to change the water regularly. Otherwise, the water will become saturated with formaldehyde and lose its effectiveness.
After renovation, you can also spread slaked lime on the floor or place activated carbon bags in different areas of your home. Both are excellent natural adsorbents for formaldehyde. By combining these strategies, you can significantly reduce indoor pollution and create a safer living environment.
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