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Updated: Jun 25, 2026

Breath Collection from Children for Disease Biomarker Discovery
Published on: February 14, 2019
Design and evaluation of a device for collecting exhaled breath condensate
Oscar Florencio Araneda Valenzuela1, Maria Paulina Salazar Encina
1Facultad de Medicina, Universidad Mayor, Santiago, Chile. oscar.aranedav@mayor.cl
Abstract:
In recent years, the analysis of exhaled breath condensate samples has been given great weight as a noninvasive methodology of studying physiology and lung diseases. The present study describes a device for measuring exhaled breath condensate that is affordable, easily constructed, portable and suitable for use in the field, as well as allowing the collection of simultaneous samples. The results obtained with this device in terms of the concentrations of pH, peroxide oxide and nitrite, metabolites related to inflammatory and oxidative damage, in exhaled breath condensate samples are comparable to those obtained with other devices previously described.
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