Can activated carbon remove formaldehyde?

Activated carbon removes formaldehyde, there is no doubt that it is useful. I don't know since when, a hot air of activated carbon to remove formaldehyde has suddenly emerged. Many people will use activated carbon when removing formaldehyde in their new homes. But here comes the problem, its real price makes one wonder if it's really useful. Next, let's talk about the aldehyde removal of activated carbon from the principle and efficiency.

1. Principles

The main component of activated carbon is carbon molecules, and its surface is uneven and has many small gaps. These small holes are the main "contributors" to adsorb formaldehyde in the air. But it can not be adsorbed endlessly. Once it reaches saturation, it will not adsorb any more, and even release the formaldehyde and other molecules it adsorbs, so it needs to be replaced regularly.

2. Efficiency

Relevant experiments show that when 6kg of activated carbon is placed in a sealed environment of 105 cubic meters for 24 hours, a removal rate of 98.1% can be achieved. From this point of view, although it has a good aldehyde removal effect, it is still too reluctant to undertake the aldehyde removal task of a large house, so it is more suitable for small spaces.