About the decoration of the need for ventilation how long to stay in this problem, almost every decoration owners concerned about the problem, from time to time I will be asked. With the improvement of living standards, people pay more and more attention to health, and decoration air pollution is also a consensus, especially formaldehyde. But many people are ambiguous about how to remove formaldehyde, and even the Internet is still circulating vinegar, water, coal ash, onions, grapefruit peel, pineapple peel these methods.

No patience to finish reading can be directly pulled to the final summary.

One

How can it be considered excessive?

Say poisonous, you should have heard a sentence "leave dosage talk about toxicity is hooliganism," according to China's "indoor air quality standards" stipulated a class of civil engineering indoor air formaldehyde limit of 0.08mg/m.

As I have mentioned before, from formaldehyde test paper, hand-held electrochemical formaldehyde tester, formaldehyde spectrophotometer to CMA certified professional testing institutions, the degree of spectral dependence increases in turn.

For ordinary households, if the requirements are not so accurate, on the electrochemical formaldehyde detector on the line, basically household almost on the line, with a relatively reliable sensor machine price is about 500 or more, of course, the detector does not have to buy, there are rental online.

Two

How to prevent exceeding the standard?

Personally, prevention is much more important than governance.

For example, as in the prevention of fire, when the fire occurs after the treatment, how much will be lost. This is the reason why formaldehyde exceeds the standard. Prevention is the most important thing in pre decoration.

Where does formaldehyde come from? Why do we say it will be released for 10 years? The source of formaldehyde is phenolic resin or urea-formaldehyde resin, which is the glue used in our panel furniture or panels. Formaldehyde can be decomposed slowly at room temperature.

So the decoration process of materials to buy as far as possible environmental protection level, especially in the decoration process used in a variety of glue, wood-based panels, composite flooring, paint, board furniture and so on. Try to choose the grade of environmental protection grade E1 or even environmental protection grade E0.

Three

How to govern excessive standards?

Although many people know the importance of prevention, the actual situation may still exceed the standard. On the one hand, man-made panels in the decoration is indispensable, as far as not all solid wood bar, not to mention the lack of money, the stability of most solid wood is actually no man-made board good. On the other hand, even if each material reaches the standard, but there is a cumulative effect, or may cause indoor excess.

The reason why I generally do not see a variety of formaldehyde treatment, because the release of formaldehyde from wood-based panels is a long-term process, treatment can only deal with free formaldehyde, the rest is still in the interior of the plate, or urea-formaldehyde resin state how do you deal with it? It can only be released when it is released.

Of course, for the material itself up to standard, the release rate should be greatly slowed down after several pre-treatment, so it can also be considered useful.

In addition, high temperature, high humidity environment is helpful for the release of formaldehyde, especially high temperature, so the Internet has been said that a summer re-occupancy will be safer, this argument is reasonable.

In my opinion, apart from radically reducing the introduction of pollution sources, it is most effective to open windows and ventilate without spending money. Other physical adsorption is very limited, chemical decomposition conditions are harsh and only free formaldehyde treatment, green planting and folk prescriptions can only be psychological comfort.

Formaldehyde is released from the board into the room, where it is high, and when you open the window and ventilate it is equivalent to a drop of ink diluted into the river, the concentration is neglected and safe.

Four

How long does the ventilation take?

I said 2 months, it was only a general time, and I didn't know that the materials you used were not reliable. Of course, in theory, the longer the ventilation time, the less formaldehyde sure, I have friends installed a luxury house for two years without living, trenches can not be compared.

In addition, generally speaking, it is not the longer the better, because many wood products, especially solid wood products, such as solid wood floors, solid wood furniture for temperature and humidity is more sensitive, after living indoor general temperature, humidity is more stable than long-term inhabited houses, so long-term inhabitants, these solid wood products are easier to open. Crack. Besides, it is not convenient to open windows and close windows.

Sum up my point of view:

1, light decoration, hard loading can be simple and simple. Complex modeling needs to introduce more materials, glue and other potential pollution sources, and the budget will cost more.

2. When it comes to wood products, it is best to use high-end solid wood. If you use wood-based panels, you will choose the best within the scope of economic capacity.

3, consider the fresh air system. (to a certain extent, instead of ventilation by windows).

4, before and after admission, suitable for ventilation windows, as far as possible ventilation.

5. If you want to speed up the release and dilution, think of ways to increase indoor temperature (such as summer, such as heating air conditioning on the ground), accelerate indoor and outdoor air flow (such as through the lampblack machine, exhaust fan, industrial fan, centrifugal fan, etc.).

In fact, after understanding the origin and law of formaldehyde production, understanding the essential method of formaldehyde treatment, specific methods can still be thought of, but some of the cost, and ventilation does not need to spend money.