DRI offers various types of granular media used in granular media filtration, along with V-bank cassettes and cartridge filters. Pahwa Group is the only organization in India with a vertically integrated manufacturing facility producing gas phase filtration systems and chemical media. A comprehensive range of granular media (pellets and beads) is manufactured in India. The media is specially designed to safely deliver effective gas removal for a variety of target gaseous contaminants found in industrial applications. The BRYSORB series is a combination of activated alumina and activated carbon impregnated with various chemicals, such as potassium permanganate (KMnO₄), phosphoric acid (H₃PO₄), and potassium hydroxide (KOH).
A UL certified activated alumina impregnated with a special chemical for effective removal of sulphur oxides, hydrogen sulphides, ethylene and aldehydes.
A perfect blend of DRYSORB 508 and DRYSORB 520 for optimum removal of harmful and odorous gases such as Ozone (O3), hydrogen fluoride (HF) and various other VOCs.
A UL certified activated alumina and activated carbon impregnated with a special chemical for effective removal of chlorine and sulphides.
A high-performance chemical media for effective removal of odorous gases such as nitrogen oxide, ozone, formaldehyde and other various VOCs.
A special grade activated carbon impregnated with a special chemical for effective removal of ammonia (NH3)
Granular media filtration is recommended when the primary concern is the removal of harmful gases, odors, and volatile chemical compounds rather than dust or particulate matter. It is commonly used in environments exposed to corrosive or hazardous airborne contaminants.
Yes. Granular media filtration helps reduce gaseous pollutants and odors, supporting indoor air quality objectives in commercial, industrial, and healthcare facilities. It can complement ventilation strategies designed to meet applicable IAQ standards.
Yes. Pharmaceutical facilities often use granular media filtration to control airborne chemical contaminants, helping protect manufacturing processes, sensitive equipment, and product quality in controlled environments.
Corrosive gases can damage circuit boards, servers, and electrical components over time. Granular media filtration removes these contaminants from the air, helping extend equipment life and improve operational reliability.
Yes. Wastewater treatment facilities frequently use granular media filtration to remove hydrogen sulfide, ammonia, and other odorous or corrosive gases, creating a safer and more comfortable working environment.
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