How to ventilate a room without windows to remove formaldehyde?

How to ventilate a room without windows to remove formaldehyde?

How to ventilate a room without windows to remove formaldehyde? The new house is decorated, and we can't wait to move in, but the existence of formaldehyde makes us suspend this plan, and in addition to formaldehyde has become our top priority. Let's see how to ventilate a room without windows to remove formaldehyde.

How to ventilate a room without windows in addition to formaldehyde 1 1, Tea in addition to formaldehyde Method: Make tea with boiling water, and put more tea leaves to ensure sufficient tea concentration. After the tea steam evaporates, it is put into a plastic bucket and fumigated indoors. After the water cools, heat it again, and so on for many times.

2. Ye Guang sludge activated carbon in addition to formaldehyde method: Through physical adsorption, formaldehyde can be effectively adsorbed and decomposed, thus effectively removing formaldehyde.

3. Plants in addition to formaldehyde Method: Keep some plants at home, such as chlorophytum, ivy, rich tree, tortoise shell bamboo, gerbera jamesonii, cycad, etc.

Formaldehyde is used to produce urea-formaldehyde resin and phenolic resin. Urea-formaldehyde resin is a mixture of formaldehyde and urea in a certain molar ratio. Formaldehyde and phenol react in a certain molar ratio to produce phenolic resin. The irreplaceable position of formaldehyde in wood processing industry is being replaced by MDI glue.

In the fabric production of clothing, in order to achieve the functions of wrinkle resistance, shrink resistance and flame retardant, or to maintain the durability of printing and dyeing, or to improve the hand feel, formaldehyde needs to be added to the auxiliary. Cotton textiles are often used as printing and dyeing auxiliaries together with formaldehyde because cotton textiles are prone to wrinkling. The stiffness of cotton fabric can be improved by using formaldehyde-containing additives.

How to ventilate a room without windows to remove formaldehyde 2. Effective methods for removing indoor formaldehyde.

1, negative ion purification

The molecular size of formaldehyde is about 0.27 nm. After surface species, adsorbents and negative ions combine with bacterial cells in the air, the energy inside the cells is transferred, and the structure changes, leading to their death. The inhaled particles such as smoke, dust and pollen floating in the air gather and naturally settle, thus achieving the purpose of purifying the air.

Advantages: simple use; High-voltage discharge and other technologies make the air produce negative ions, which combine with particulate pollutants in the air to make tiny particles gather and settle, which has a certain effect on purifying the air.

2. Soak in water, vinegar and black tea to remove formaldehyde.

Many people on the Internet say that because formaldehyde is soluble in water, you can put more pots at home to absorb formaldehyde, or soak it in vinegar or black tea. It is a fact that formaldehyde is soluble in water, water, alcohol and ether. Free formaldehyde in the air will dissolve into it when it meets water during movement, which is similar to the adsorption principle of activated carbon. The contact area between a basin of water and air is only the size of a basin, while the specific surface area of internal pores of 1g activated carbon can reach the size of a football field.

Even if you put a hundred pots of water in the room, the adsorption effect will not be much stronger than a small bag of activated carbon. Therefore, it is obviously unrealistic to use water, black tea and vinegar to adsorb formaldehyde. The release of formaldehyde is closely related to indoor temperature and humidity. With the increase of temperature, the release of formaldehyde will greatly increase. The experimental results show that when the relative temperature in the air increases 10%, the indoor formaldehyde emission will increase by about 5%.

3, coconut charcoal in addition to formaldehyde

Coconut shell charcoal is a new type of activated carbon, which is composed of gray and black particles. Gray particles are a mixture of coconut shell activated carbon, photocatalyst and tourmaline, which has strong adsorption capacity and high adsorption rate.

4. Nanjing Stone in addition to formaldehyde

Na Shi Jing is a popular material for controlling formaldehyde pollution in recent years. It has two kinds of small particles: black and white. It can not only absorb a lot of formaldehyde gas, but also decompose these formaldehyde gases into water vapor and carbon dioxide.

5. Photocatalysts outside in addition to formaldehyde

After adding platinum photocatalyst, nano-TiO _ 2 is excited by electrons, and free electrons will soon combine with absorbed oxygen to generate superoxide radicals, thus realizing the redox reaction of formaldehyde and catalyzing the decomposition of formaldehyde under the condition of no illumination.

6. Plants absorb formaldehyde

Plants can inhale some harmful substances through photosynthesis, but the effect of this method is extremely limited. The reason for this is the following：

Plants carry out photosynthesis, generally inhaling some harmful substances during the day, but they have no such function at night. The law of people's life is generally outdoor during the day and indoor at night. When people need air purification most, plants can't play a corresponding role.

The harmful substances absorbed by plants are extremely limited. The national standard requires that the formaldehyde emission value is less than 0.08 mg/m3, and the formaldehyde in most newly decorated houses is not less than 0.2 mg/m3, while the formaldehyde absorbed by the high formaldehyde absorption efficiency is only 20 micrograms per hour. Take a room of 100 square meter with a height of 3 meters.

A room with a formaldehyde value of 0.2 mg/m3 needs 1.800 pots of green radish at the same time, and almost the whole room needs to be filled to reduce the formaldehyde to 0.08 mg, which is still carried out under the condition of sufficient light during the day, and it is necessary to ensure that no formaldehyde is released during the absorption process. In fact, formaldehyde has been continuously released from the renovated furniture. Therefore, plants can only play an auxiliary role in controlling harmful substances such as formaldehyde and benzene.

7. Plant sources

Purifying and atomizing plant-derived air into terpenoids has a wide range of biological activities, but relying on traditional production methods of plants is one of the bottlenecks in popularization and application. Using synthetic biology strategy to create microbial "cell factory" is expected to provide advanced technology for low-cost and sustainable supply of terpenoids from plants. Tanshinone is the main fat-soluble active component of Salvia miltiorrhiza, which belongs to norditerpenoids of rosin alkanes.

How to ventilate a room without windows to remove formaldehyde 3? How to ventilate a room without windows?

1, transform the window.

If you have the conditions, you can choose to change the windows yourself, which can solve the ventilation problem smoothly, but you can't destroy the load-bearing structure of the house. You should negotiate with the property.

2, pipe ventilation

If it is not a load-bearing wall, make a round hole in the outer wall, then connect the pipe to the room, install a ventilator indoors, and use the fan to transport the outside air to the room. Exhaust gas will overflow through the gap, forming a good indoor and outdoor air circulation, and can also remove indoor odor, formaldehyde and so on.

3. Fresh air system

If the budget is sufficient, it is recommended to install a fresh air system in the room. The principle is to use the fan to send outdoor air into the room, and then use the micro-positive pressure principle to discharge indoor polluted air, so as to realize the constant indoor oxygen and remove indoor polluted air, which makes the indoor air more pure and more suitable for human needs. It is a relatively ventilated scheme, but the cost is relatively high.

4. Air supply by air conditioner

Now many new air conditioners have the function of fresh air ventilation. Simply put, a plastic ventilation pipe is added between the indoor unit and the outdoor unit, and an exhaust fan is installed inside. The working principle is to introduce outdoor fresh air into the room, so as to keep the indoor air fresh and eliminate miscellaneous gases. Turning on the ventilation function will not increase the workload of the air conditioner, only electricity is needed.