This article discusses the important role of chemical filters as specialized filtering devices in the fields of environmental protection and industrial production. Operating on adsorption principles, chemical filters effectively capture and immobilize harmful chemicals in gases, thus protecting the environment, human health, and industrial production safety. In environmental protection, chemical filters are utilized for air purification, removing harmful substances from waste gases to reduce environmental pollution. In industrial production, chemical filters play a crucial role in systems like fresh air treatment, safeguarding production equipment safety, product quality, and reducing emissions. In summary, the key function of chemical filters is to filter and purify harmful chemicals in gases, providing vital support for environmental protection and industrial production.