Air compressor filter

An air compressor filter, wherein comprising:

• A housing, a first filtration component, a second filtration component, a silica filtration component, and an activated carbon filtration component, wherein the housing is provided with an airflow passage and an airflow inlet and an airflow outlet in communication with the airflow passage;
• The first filtration component, the second filtration component, the silica filtration component, and the activated carbon filtration component are sequentially connected to the housing and communicate with the airflow passage, with airflow entering the airflow passage through the airflow inlet and passing through the first filtration component, the second filtration component, the silica filtration component, and the activated carbon filtration component, finally exiting through the airflow outlet;
• wherein, the silica filtration component includes a holding space to accommodate color-changing silica, and the surface of the silica filtration component is provided with several observation windows, allowing the user to observe the color-changing silica within the holding space.