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Do exhaled moisture droplets affect the PORTACOUNT?

April 26, 2017affect droplets exhaled moisture portacount

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Do exhaled moisture droplets affect the PORTACOUNT?

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Exhaled moisture droplets have little effect on the PORTACOUNT for two reasons. One is that there are not enough of them to make a difference and the other is that large droplets either evaporate or impact with the walls of the sample tube before they reach the PORTACOUNT. If a body-generated droplet were to be counted by the PORTACOUNT, the result would be a fit factor that is lower than it should be. There is no possibility of overstating the fit factor.