I hope that besides formaldehyde jelly, there are mainly bamboo charcoal, activated carbon and tea tree essential oil. These components have good adsorption performance and can adsorb pollutants in the air and harmful gases such as formaldehyde. However, it should be noted that it is hoped that in addition to formaldehyde jelly can only play a role in confined space, and the formaldehyde content in outdoor air is very low, so it is difficult to effectively purify it. Therefore, Venus hopes that in addition to formaldehyde Jelly will be useful.