We all know that after the end of home renovation, no matter how environmentally friendly building materials products you use, there must be formaldehyde in your home. Formaldehyde can be said to be the largest harmful gas after renovation. In fact, most building materials products have formaldehyde. Then, how long does it take to release formaldehyde from wooden floors ? What are the effective ways to remove formaldehyde? Let's follow Xiaobian together to understand it. 
How long does wood floor formaldehyde release
1. The volatilization period of formaldehyde is generally 5 to 15 years, which is a relatively long volatilization process. In general, basic formaldehyde release will take at least several years.
2. Because of the long period of formaldehyde release, precautions must be taken.
3. Open windows more for better volatilization and dilution of formaldehyde.
How long will it take to release formaldehyde from wooden floors? In fact, it is related to the environment and the method of removing formaldehyde. So, let's let Xiaobian introduce the effective way to remove formaldehyde. 
An effective way to remove formaldehyde
Plant absorption method
Because plants have a strong ability to absorb formaldehyde, putting some plants in them is still very effective in the removal of formaldehyde. For example, spider plants, cacti, reeds, and cycads all have the effect of purifying the air.
2. Folk circulation methods
This practice is more ancient and traditional, but it is also a very high usage rate. It is to put tea leaves, grapefruit skin, onion slices, pineapple blocks, etc. in a newly decorated room or to fumigate the whole room with white vinegar. In fact, this amount of practice, it only played a role in covering the smell, there is no real effect of removing formaldehyde.
3. 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. Although the effect of activated carbon is good, but as with other methods, it does not completely remove the formaldehyde in the air. 
Photocatalytic decomposition
The catalyst in the photocatalyst stimulates the oxygen and moisture in the air to generate negative ions and hydroxyl radicals under the stimulation of light, and can oxidize and decompose various organic pollutants and inorganic pollutants, and finally degrade into carbon dioxide, water and corresponding acids. Such as innocuous substances, so as to break down the pollutants and purify the air.
5. Purifier processing method
There are many types of air purifiers on the market today, but they all have the same effect, but air purifiers are generally only effective in closed spaces. If the window is used, it is almost ineffective. 
Editor's summary: The above is a small series on the formaldehyde release of wood floors and the effective method of removing formaldehyde, I hope the introduction of this article can help you better understand the release period of formaldehyde, and be able to master the removal of formaldehyde Effective approach.
A spectacle blind or spec blind, is a safety device used to isolate a section of line or piece of equipment when the line or equipment needs to be inspected or removed from service. It is different than a valve in that the blind is a permanent or long term isolation device.
A spectacle blind is machined from a single piece of metal that is cut to match the pipe size, fit between two pipe flanges and requires an additional Gasket when it is installed. Also, the bolts will need to be lengthened depending on what piping class and size blind is used. The thickness of the spectacle blind is specified based on the line pressure and pipe size.
The specification that determines the dimensions of a spectacle blinds is ASME B16.48 - Line Blanks. A line blank conforming to this standard will be marked in the following way:
B16
Nominal Pipe Size (NPS)
Nominal Pressure Class
Material
Manufacturer's Name
If RTJ, the ring number
One end of the blind will have an opening to allow flow through the pipe during operation and the other end is solid to block flow during maintenance
Spectacle Blind Flange , Figure 8 Flange , Spacer & Spade , Spectacle Blank , Pandle Spacer
Shijiazhuang Bang dong Pipeline Technology Co,Ltd. , https://www.bd-pipefitting.com