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  Indian J Med Microbiol
 

Figure 5: (a) Decoupling of fresh gas flow (FGF). The decoupling valve (DV) closes during the inspiratory phase of mechanical ventilation, diverting the FGF to the reservoir bag, and preventing further addition of FGF to the inspired gas mixture (b) During expiration, the DV opens, allowing fresh gases that had been diverted to the reservoir bag to be added to the ventilator circuit for delivery in the next inspiration

Figure 5: (a) Decoupling of fresh gas flow (FGF). The decoupling valve (DV) closes during the inspiratory phase of mechanical ventilation, diverting the FGF to the reservoir bag, and preventing further addition of FGF to the inspired gas mixture (b) During expiration, the DV opens, allowing fresh gases that had been diverted to the reservoir bag to be added to the ventilator circuit for delivery in the next inspiration