Decoir new houses, or bought a new car, many citizens will buy some activated carbon packages in the room or in the car to absorb the formaldehyde in the air. However, the quality of these active carbon packs, can the activated carbon package reuse after exposure? For these problems, the Jiangsu Quality Supervision Department released the 2015 air purification activated carbon product risk monitoring quality analysis report.
In Taobao, enter “activated carbon” three words, you can search for a large amount of air purification activated carbon products, selling price from more than a hundred yuan per kilogram to more than 100 yuan. These active carbon packs claim that can efficiently adsorb the formaldehyde in the air, is this publicity reliable? Recently, the Jiangsu Provincial Quality Supervision Bureau entrusted the provincial quality inspection hospital to carry out risk monitoring of air purification activated carbon. This monitoring of the total number of samples 65 batches, of which the network platform purchased 45 batches, accounting for 70% of the number of samples.
Testing found that nine products were less than 30% of the adsorption rate of formaldehyde. There were 21 adsorption at 30% to 50%, and 32 of the adsorption rates of 50% to 70%, only 3 products of formaldehyde. The adsorption rate exceeds 70%.
The detection person told reporters that 50% of the adsorption rate were one and grid lines of activated carbon products, while the adsorption rate exceeded 70%, which exceeded the three brands of more than 70% of the adsorption rate: Hainan Star Active Carbon Co., Ltd. produced coconut shell activated carbon produced , Fujian Xinsen Charcoal Co., Ltd. produced air carbon, Jiangsu Zhuxi Activated Carbon Co., Ltd., produces air purified activated carbon.
In the face of the anesthetic activated carbon products on the market, how should consumers quickly judge the quality of activated carbon? Song Hongbo, Qiyang Branch, Jiangsu Provincial Quality Inspection Institute, said that the activated carbon purchased by consumers will have several forms, powdered, granulated, and columnar, wherein the porous structure is generally more adsorption.
It is also a simple judgment method in placing activated carbon in water. If it floats on the surface, or when the bubbles in the lower bubble, you can explain the quality of activated carbon you purchased. The reporter also found online, some vendors will return bamboo charcoal to air purify activated charcoal during publicity, then how is the formaldehyde adsorption of bamboo charcoal? Experts did 12 bamboo charcoal products, and found that bamboo charcoal adsorption capacity is generally poorly poor, and all products do not reach 50% of the adsorption rate.
At present, the active carbon package sold on the market is more non-woven packaging. Song Hongbo told reporters that like this carbon package, it is likely to absorb a lot of moisture and other gases, which in turn affects the absorption of formaldehyde. In this regard, industry insiders suggest that you can purchase activated carbon with sealed packaging, which maintains its optimal adsorption.
Experts also remind consumers, when purchasing air purifies activated carbon products, try to purchase brand products with certain visibility. After 48 hours, it is necessary to handle it in time, rain for more than ten times or bake, can restore the capacity of the absorption of formaldehyde.