Disposable D-Pieces for use with Bedfont Products. Single Use. o The D-piece incorporates a one-way valve to prevent air being drawn back from the monitor. o The breath then passes through an infection control filter, proven to remove and trap >99.9% of airborne bacteria. o This system further reduces the risks of cross infection and protects the instrument from contamination. o For use with Flatpak Mouthpieces and Steribreath (new style mouthpieces) Compatible with: o piCO+ Smokerlyzer o Micro+ Smokerlyzer o Gastro+ Gastrolyzer o ToxCO