Other methods recommended by in addition to formaldehyde.
1, activated carbon: activated carbon is a very good adsorption product, but it will be saturated in about 3-7 days, and with the change of indoor temperature, the internal balance of activated carbon will change and adsorbate will be released. Activated carbon needs to be regenerated after being exposed to the sun, and can be recycled for about 30-50 times.
2, green plants: green radish, chlorophytum, gladiolus can really remove formaldehyde, because there is a kind of bacteria in the roots of these plants, it needs to absorb formaldehyde as a nutrient to maintain life. However, its adsorption capacity is limited, and once the pollution degree is too large, the adsorption effect is minimal.
3. Air purifier: The air purifier can not only remove formaldehyde, but also play a certain role in air purification. Its filter screen can decompose formaldehyde into carbon dioxide and water to avoid secondary pollution, thus achieving the purpose of removing formaldehyde and purifying the air.
Indoor formaldehyde detection method
1, self-test
Self-inspection is generally formaldehyde detection paper and formaldehyde detection box. This kind of test equipment, which can be purchased online, has the advantages of cheapness, quickness, convenience, wide test range and simple operation. Formaldehyde test paper is made in China and imported. Prices vary from product to product. The disadvantage is that the accuracy of the test results is not high enough. During the test, the temperature and humidity changes in the test space should be minimized to ensure the stability of the test conditions.
2. Testing by professional institutions
However, we should carefully choose formaldehyde detection institutions, because the results of different institutions are different. It is recommended to find a national certified in addition to formaldehyde company for professional testing.