Greeknhi desiccant compressed air dryers use special adsorbents for air purification. This adsorbent features a strong adsorption capacity, mold removal, sterilization and deodorization process so that the final air quality will meet ISO8573.1 Class 2.1 standards. This gives the air compressor a longer service life and lowers operation costs. And, as no refrigerant is required for a desiccant compressed air dryer, as compared to a refrigerated compressed air dryer, it is more environmentally friendly with a better temperature and weather resistance.