1. Charcoal is used as a decolorizer as it adsorbs the coloring matter from the coloured solution of sugar
2. Silica gel adsorbs moisture from the dessicator
3. Silica and alumina gels are used as adsorbent for removing moisture and for controlling humidity of rooms.
4. Activated charcoal is used in gas masks for toxic gases and vapors and purifies the air for breathing.
5. Adsorption processes are useful in carrying out heterogeneous catalyst.