As reported by the Times of India, submarines generate a lot of harmful gases such as carbon monooxide (CO). To ensure the safety of the Naval staff, the DRDO has not only developed its own CO filters called 'CFKIII room filters' but also room filters that can absorb over 40 different gases, at almost one fifth of the imported cost.
The newspaper suggests that India is the first country to develop a CO filter which can work for indefinite period even in heavy moisture conditions.
The DRDO headquarters has also developed other types of room filters which can remove 40 harmful gases including hydrogen sulphide, ammonia, stibine, hydrogen cyanide and acrolein. These filters need to be changed after 45 days and one ship needs at least 14 different filters.
The CO filters are on display at the three-day AXIS technical festival held at the Visvesvaraya National Institute of Technology in Nagpur, India.
