Abstract: Breath sensor calibration methods and apparatus are described herein where a breath sensor device may generally comprise a sampling unit having a housing configured to receive a sample breath from a user and a sensor positioned within the housing. A processor in electrical communication with the sensor may be configured to determine a dissipation time when the sensor is exposed to a near-constant concentration level of CO detected from the breath sample down to an ambient level of CO detected. The processor may also be configured to calculate a time constant based on the dissipation time and a reduction from the near-constant concentration level to the ambient level. Furthermore, the processor may also be configured to apply the time constant to a transient response of the sensor to account for drift in calibrating the sensor.

Abstract: Breath sensor calibration methods and apparatus are described herein where a breath sensor device may generally comprise a sampling unit having a housing configured to receive a sample breath from a user and a sensor positioned within the housing. A processor in electrical communication with the sensor may be configured to determine a dissipation time when the sensor is exposed to a near-constant concentration level of CO detected from the breath sample down to an ambient level of CO detected. The processor may also be configured to calculate a time constant based on the dissipation time and a reduction from the near-constant concentration level to the ambient level. Furthermore, the processor may also be configured to apply the time constant to a transient response of the sensor to account for drift in calibrating the sensor.

Abstract: Breath sensor calibration methods and apparatus are described herein where a breath sensor device may generally comprise a sampling unit having a housing configured to receive a sample breath from a user and a sensor positioned within the housing. A processor in electrical communication with the sensor may be configured to determine a dissipation time when the sensor is exposed to a near-constant concentration level of CO detected from the breath sample down to an ambient level of CO detected. The processor may also be configured to calculate a time constant based on the dissipation time and a reduction from the near-constant concentration level to the ambient level. Furthermore, the processor may also be configured to apply the time constant to a transient response of the sensor to account for drift in calibrating the sensor.

Abstract: Breath sensor measurement methods and apparatus are described. One variation may generally comprise a sampling unit having a breath sampling port, at least one pressure sensor located within the sampling unit and in communication with the breath sampling port, and a processor in communication with the at least one pressure sensor. The processor may be configured to prompt a user with instructions to exhale a sample breath for a first predetermined period of time into the breath sampling port and to inhale for a second predetermined period of time through the breath sampling port. The processor may be configured to measure a pressure change via the pressure sensor over the first and second predetermined periods of time such that the processor determines a total volume of air corresponding to lung capacity of the user based on the pressure change over the first and second predetermined periods of time.

Abstract: A system and method includes delivery of a redox gas solution to treat onychomycosis, wherein the redox gas solution comprises a reactive species dissolved in a perfluorocarbon liquid, and wherein the perfluorocarbon liquid is dispensed onto a gas-permeable membrane and the perfluorocarbon liquid comprises of an anti-inflammatory in a perfluorocarbon liquid and wherein the reactive species may include, alone or in combination, one or more of reactive oxygen, reactive nitrogen, reactive chlorine, or reactive bromine species, and the perfluorocarbon liquid may include perfluorodecalin.

Abstract: A system and method includes delivery of a redox gas solution to treat onychomycosis, wherein the redox gas solution comprises a reactive species dissolved in a perfluorocarbon liquid, and wherein the reactive species may include, alone or in combination, one or more of reactive oxygen, reactive nitrogen, reactive chlorine, or reactive bromine species, and the perfluorocarbon liquid may include perfluorodecalin.

Abstract: A system and method includes delivery of a redox gas solution to treat onychomycosis, wherein the redox gas solution comprises a reactive species dissolved in a perfluorocarbon liquid, and wherein the perfluorocarbon liquid comprises of an anti-inflammatory in a perfluorocarbon liquid and wherein the reactive species may include, alone or in combination, one or more of reactive oxygen, reactive nitrogen, reactive chlorine, or reactive bromine species, and the perfluorocarbon liquid may include perfluorodecalin.

Abstract: A system and method includes delivery of a redox gas solution to treat onychomycosis, wherein the redox gas solution comprises a reactive species dissolved in a perfluorocarbon liquid, and wherein the perfluorocarbon liquid is dispensed onto a gas-permeable membrane and the perfluorocarbon liquid comprises of an anti-inflammatory in a perfluorocarbon liquid and wherein the reactive species may include, alone or in combination, one or more of reactive oxygen, reactive nitrogen, reactive chlorine, or reactive bromine species, and the perfluorocarbon liquid may include perfluorodecalin.

Abstract: A system and method includes delivery of a redox gas solution to treat onychomycosis, wherein the redox gas solution comprises a reactive species dissolved in a perfluorocarbon liquid, and wherein the perfluorocarbon liquid is dispensed onto a gas-permeable membrane and the perfluorocarbon liquid comprises of an anti-inflammatory in a perfluorocarbon liquid and wherein the reactive species may include, alone or in combination, one or more of reactive oxygen, reactive nitrogen, reactive chlorine, or reactive bromine species, and the perfluorocarbon liquid may include perfluorodecalin.

Abstract: A system and method includes delivery of a redox gas solution to treat onychomycosis, wherein the redox gas solution comprises a reactive species dissolved in a perfluorocarbon liquid, and wherein the reactive species may include, alone or in combination, one or more of reactive oxygen, reactive nitrogen, reactive chlorine, or reactive bromine species, and the perfluorocarbon liquid may include perfluorodecalin.