Which of the following has developed an active respirator mask that ha – McqOptions

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1.	Which of the following has developed an active respirator mask that has an attached exhalation valve and filters against suspended-particles for comfortable and hygienic breathing?
A.	S.N. Bose National Centre For Basic Sciences
B.	Tata Institute of Fundamental Research
C.	Centre for Economic and Social Studies
D.	Malaviya National Institute of Technology
E.	IIT Madras
Answer» B. Tata Institute of Fundamental Research

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