What is the principle of in addition to formaldehyde in Fane's Box?

The principle of Fane's Box is that it will continuously release aldehyde removal factors (modified soybean protease, Fanduojing) with water, and capture harmful substances such as formaldehyde, phenols and tvoc in the air. Directly eliminated and transformed into stable and harmless substances. And can actively capture odor molecules and decompose them.