Don't count on plants to absorb formaldehyde, really not much effect, a lot of word of mouth and appear a kind of "effect", but in fact it is not. Experiment as evidence:
Test object: large leaf green < / strong>
Green as a large evergreen vine, known as green plants in the "deodorant king". But what is the actual effect of deodorization?
The experiment was carried out in a closed chamber dedicated to the detection of gaseous pollutants, and the volume of the chamber was 30 m?, which is basically equivalent to the size of a standard bedroom. Before the test, the initial concentration of formaldehyde in the experimental chamber was determined to be 0㎎/m? In order to ensure the validity of the verification effect, all the deodorization products used in the test were much higher than the amount required in the experimental chamber.
The formaldehyde used in the experiment is also a special preparation, all the use of the purity of up to 97% of the powdered formaldehyde, through the heating of the gaseous formaldehyde, formaldehyde test concentration is set at 1㎎/m?, that is, the proposed formaldehyde exceeds the standard by more than 10 times.
The test, the experimental chamber was placed on the 20 pots of green, such a use of the number of general family is difficult to reach, but the test results are shocking.
In the 1㎎/m?formaldehyde concentration of the experimental chamber, one hour later, the formaldehyde detector data show 0.98㎎/m?, that is to say, 20 pots of green Luo one hour formaldehyde purification rate of only 2%.
But can you guarantee such plant density in your home? So, usually open the window to ventilate a little more, want to set up plants can also, just can not take it as a means of purifying formaldehyde, if formaldehyde so good purification, then it is not stubborn pollutants. It is important to choose the right way to purify, after all, it has 3-15 years of volatile period.
Currently, the most effective means of purifying formaldehyde is negative ion + ozone, that is, the use of ecological negative ion air purifier. China Air Negative Ion and Ozone Research Society chief expert, senior engineer Professor Tao Mingzhang introduction, ecological negative ion air purifier and ordinary purification equipment is different, it also has a negative ion system and ozone system, the two major systems division of labor, respectively, in the people indoors and the people leave the room after the often new dynamic governance and specialization of the static governance. The ecological negative ion air purifier through the use of "negative ion + ozone" joint purification mode, and can play a role in the purification of formaldehyde?
First of all, we are from the Chinese air anion and ozone research society expert group edited by the "air negative ions in health care and environmental protection in the application of" can be accessed to such a scientific experiment: scientists irradiate formaldehyde with an electron beam of air mixtures, when the radiation energy of the electron beam reaches 4kGy, the formaldehyde concentration is reduced from 105g/L to 50g/L; but if the radiation energy increased to 13kGy. radiation energy increased to 13kGy, the concentration of formaldehyde dropped to almost zero. Among them, negative ion is an important intermediate in the reaction. The degradation effect of negative ions on formaldehyde has thus been practically certified.
On the purification effect of ozone on formaldehyde, we can verify it through on-site testing.
We put the detector into the plate box purchased from the market, after a period of time, the detector on the formaldehyde index quickly reached 0.881mg, while the national requirements of the formaldehyde content of indoor air shall not exceed 0.08 mg/cm?
Then, the experimenter will be ecological negative ion air purifier put out of the sheet box, and the ozone system is open, ozone free release, this test time is set at 3 minutes. 3 minutes later, the detector shows that the value of formaldehyde in the test box is 0.000mg/cm?
China Federation of Industrial Economics, director of the Ozone Committee, Tsinghua University Professor Wang Shiwen explained that the ozone can be dehydrogenated with formaldehyde reaction, so that the length of the chemical bond changes and breakage, the formation of complexes and HOOO, thus completing the oxidation and decomposition of formaldehyde. And the concentration of ozone released in the national safety range, will not cause any harm to the human body.
Through this evaluation, it can be seen that the eco-anion air purifier removes formaldehyde most effectively and thoroughly.