Ahmedabad-based company ties up with DRDO to develop N-99 masks

The Ahmedabad Textile Industrys Research Association in collaboration with the Defence Research and Development Organisation has produced a high quality cloth to make masks of 99 per cent filter efficiency, the highest among all kind of masks available in the country. The N-95 respirator, in comparison, is able to filter 95 per cent of the very small airborne particles

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