Formaldehyde in our living life
Do you know we can find lots of products that emission formaldehyde?
Look around your living room. Wall, ceiling, floor and furniture, these products are made of wood composite products, and these are cause of formaldehyde emission because those wood materials are manufactured by using glues contained formaldehyde.
Formaldehyde is regulated the usage amount under the building standard act, so that it is a very toxic substance that is caused of sick building syndrome.
When you inhale formaldehyde, you will have some symptoms, such as eye irritation, runny nose, cough, sore throat, eczema, because formaldehyde is a chemical substance to irritate human mucous membrane.
Indoor, the main resource of formaldehyde emission is " Plywood" that are used in ceilings, walls, closet, floor and so on.
You can have more details about sick building syndrome form here.
Why is formaldehyde still used a lot?
Why lots of plywood still contains formaldehyde, even it is known as a toxic substance?
First of all, building material has strong durability necessary to protect from humidity and any damages for serving comfortable living space. Therefore, plywood is manufactured by laminated veneer or plastic panel with using glue that contains formaldehyde.
However, what the problem is that formaldehyde continue to come out from plywood, and it keeps for a long time without your noticing. Depends on living environment, it has some risks there are high formaldehyde level indoor.
Therefore, in some countries, the government has the regulation for formaldehyde emission from plywood.
For example, if the building material is passed the regulation at high level, such as F☆☆☆☆, the material can be used to anywhere indoor.
On the other hand, building materials that is not passed the regulated level, the usage amount is limited depends on types of living rooms and air exchange time.
As an example, in Japna, it is obligated to install an air exchange instrument indoor under the Building Standard Act. Even if building materials doesn't contain formaldehyde, this rule is applicable to all buildings as living space because formaldehyde comes out from furniture too. (No.20-8)
And also, ceiling has a rule under the law, that building material should be low-formaldehyde type or need to install air exchange instrument for back space of ceiling.
Formaldehyde emission standard of building material
Category of building materials contains Formaldehyde | JIS&JAS | Formaldehyde emission amount (Average) | Usage amount limit*1 |
Exclude the regulation | F☆☆☆☆ | 0.3mg/L or less | No limitation |
The 3rd class formaldehyde emission | F☆☆☆ | 0.5mg/L or less | Limit to 2times of floor area |
The 2nd class formaldehyde emission | F☆☆ | 1.5mg/L or less | Limit to 0.3times of floor area |
The 1st class formaldehyde emission | Inhibition to use |
※1: This is applicable to living space, and air exchange time is more than 0.5 times to under 0.7 times.
Why you need measures for formaldehyde emission?
For example, Under Building Standard Act in Japan, at hand over buildings, responsible company should measurement formaldehyde level indoor, and it should be under 0.1mg/㎥ for 30 minutes average (at 23 deg C, under 0.08ppm).
Generally, almost building manufacturers use low formaldehyde emission building materials to pass this rule (0.1mg/㎥,30minutes), however, for the persons who are sensitive to chemical substances, they still may have sick building syndrome.
And also, when you purchase new furniture, it can be cause of sick building syndrome because formaldehyde comes out from the furniture.
Once you have sick building syndrome, you will react formaldehyde even if it is very low emission amount, and it will affect to your daily life.
If you have already some symptoms of sick building syndrome or you concern formaldehyde problem, you should use "Formaldehyde removal coating MOLDEFEAT" as the solution.
You can apply "Formaldehyde removal coating MOLDEFEAT" to walls, ceiling, and furniture in your room, then Moldefeat starts to remove formaldehyde immediately for a long-term.
MOLDEFEAT is not only for the solution for formaldehyde but also it brings very comfortable environment to you and your family.