Activated carbon has wide applications in the field of air purification due to its unique physical and chemical properties (such as high specific surface area, porous structure and strong adsorption capacity).
1. Adsorbing volatile organic compounds (VOCs)
Household air purifiers: Removing indoor air pollution caused by decoration and the formaldehyde released by furniture. 
Industrial waste gas treatment: Treating organic waste gas emitted by industries such as printing and chemical manufacturing.
2. Eliminate odors
Deodorants for bathrooms and refrigerators. 
Pet odor and smoke removal (such as vehicle air purifiers).
3. Filter harmful gases
Gas mask: Absorbs toxic gases such as chlorine and sulfur dioxide. 
Laboratory fume hood: for handling acidic gases or mercury vapor.
4. Collaborate with other purification technologies
Combined with HEPA filter: activated carbon adsorbs gas pollutants, HEPA filters particulate matter (such as PM2.5, pollen). 
Photocatalytic assistance: Activated carbon is used as a carrier to load photocatalysts (such as TiO₂), which decompose and adsorb pollutants.
5. Industrial and special application scenarios
Vehicle exhaust treatment: Some vehicle models have carbon tanks that adsorb fuel vapors. 
Medical field: Purify the anesthesia gases or pathogens in the operating room air.

Notes for Attention
Saturation: Once activated carbon reaches its saturation point, it will lose its effectiveness. It needs to be replaced or regenerated (such as through exposure to sunlight or high-temperature desorption). 
Selectivity: It has a better adsorption effect on non-polar molecules (such as formaldehyde), but has a limited effect on polar molecules (such as carbon monoxide). 
Safety: Avoid high temperatures or open flames to prevent combustion.