Eye level flow indicator makes keeping a constant flow during exhalation easy, even for young children. Using the NObreathFloTM and mouthpieces provided allows the user to comply with ATS/ERS guidelines for FENO testing.
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Eye level flow indicator makes keeping a constant flow during exhalation easy, even for young children. Using the NObreathFloTM and mouthpieces provided allows the user to comply with ATS/ERS guidelines for FENO testing.