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Figure 3 | BMC Public Health

Figure 3

From: Early diagnosis of asthma in young children by using non-invasive biomarkers of airway inflammation and early lung function measurements: study protocol of a case-control study

Figure 3

Schematic representation of the glass closed condenser. 1. Inclined glass condenser with a moveable plunger. 2. Swan-neck tubing (saliva trap) and two-way non-rebreathing valve, connected to a face mask with separated nose and mouth cavity. 3. Entrance of inspired room air. 4. Cooling unit. 5. Sample vial to collect EBC. 6. Ventilator system for recirculation of non-condensed exhaled breath. 7. Heated (at 37°C) inert Tedlar™ gas sample bag to collect the residual non-condensed exhaled breath.

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BMC Public Health

ISSN: 1471-2458

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