Everyone knows that after the decoration of a new house, it is not possible to move in immediately because the indoor formaldehyde content is relatively high. I believe everyone should be aware of the hazards of formaldehyde, which can cause great harm to the human body. For some friends who want to move into a new house as soon as possible, removing indoor formaldehyde is an urgent matter, so many families use activated carbon. Can activated carbon really remove indoor formaldehyde? How to use activated carbon? Today, let me talk about whether activated carbon is effective in removing formaldehyde.

Can activated carbon really remove formaldehyde?

Activated carbon is an amorphous carbon that appears in powder, particle, block, honeycomb, and even has neatly arranged crystals. Due to its stable characteristics, it has heat resistance, alkali resistance, acid resistance, and is not compatible with water. It is widely used in modern chemical engineering, environmental protection, and other fields.

Although ordinary activated carbon has good absorption capacity, if it only relies on absorption to remove formaldehyde, it will not take long to reach saturation. At this point, activated carbon not only fails to remove formaldehyde, but also becomes a source of pollution and releases absorbed formaldehyde, which has the opposite effect.

Even if activated carbon can remove formaldehyde, the effect is relatively slow and incomplete. When the old activated carbon used at home is used for about 3 months, it is necessary to replace it with new carbon, and the effect will be better at this time.

How to use activated carbon correctly?

Dosage of activated carbon:

Newly renovated living spaces (including offices, hotels, etc.) should be used at a rate of 1-2 packs per square meter (i.e. 50-100g). The daily protection of indoor environment can be appropriately reduced according to the degree of pollution.

Note: 50-100g per square meter is used to calculate the total space usage, and does not refer to evenly placing 50-100g per square meter.

Instructions for using activated carbon:

1. Firstly, after purchasing activated carbon, we take it out and place it in places that require purification, such as bedrooms, cabinets, study rooms, living rooms, bathrooms, storage rooms, etc.

2. Generally speaking, the treatment area of one box of activated carbon is about 120 square meters, depending on the pollution situation. When the pollution is severe, it is recommended to increase the usage. Keep windows open for ventilation during use for better results.

3. Activated carbon generally has no toxicity or side effects. It is recommended to place a pack of 1-1.5 square meters in newly renovated rooms.

4. Activated carbon has an unopened shelf life of 5 years, and its shelf life after opening is 3 years. Please pay attention to the expiration date.

5. After 30 days of use, activated carbon can decompose harmful substances by exposing it to the scorching sun for 3-5 hours, and recycling still has a significant effect.

Will activated carbon leak out again after adsorbing toxic and harmful gases?

The process of releasing molecules of toxic and harmful gases adsorbed from the micropores of activated carbon is called "desorption" or "regeneration" of activated carbon. The desorption of activated carbon requires complex processes such as thermal regeneration, chemical elution, solvent extraction regeneration, and biological regeneration in specific equipment. Therefore, in the natural environment, toxic and harmful gas molecules adsorbed in activated carbon micropores cannot leak out on their own.