Abstract: A system may include an air manifold, a reservoir, a coupler and a straw. The air manifold may have three terminal ends—an atmosphere end, a respiratory end and a mixing end. The air manifold may further include four ports—an atmosphere port disposed at the atmosphere end, an atmosphere-mixing port disposed at the mixing end, a respiratory port disposed at the respiratory end, and a respiratory-mixing port disposed at the mixing end. The atmosphere port may be fluidly coupled to the atmosphere mixing port, the respiratory port may be fluidly coupled to the respiratory-mixing port, and the respiratory port and atmosphere port may be fluidly isolated from each other within the air manifold. The coupler may be configured to couple the air manifold to the reservoir. The straw may removably coupled to the respiratory port and extend into the reservoir.

Abstract: Aspects discussed herein relate to remixing devices that can be used to modify a gas mix being inhaled by a user. The device can accurately adjust inspired CO2 and/or 02 levels independently to a desired level. Aspects described herein generally improve the quality, efficiency, and speed of devices to provide breathing gas mixes. Medical conditions can be diagnosed and a therapeutically effective gas mix can be provided as treatment for diagnosed medical conditions.

Abstract: Aspects discussed herein relate to remixing devices that can be used to modify a gas mix being inhaled by a user. The device can accurately adjust inspired CO2 and/or O2 levels independently to a desired level. Aspects described herein generally improve the quality, efficiency, and speed of devices to provide breathing gas mixes. Medical conditions can be diagnosed and a therapeutically effective gas mix can be provided as treatment for diagnosed medical conditions.

Abstract: Aspects discussed herein relate to spirometers that can be used to measure lung function using a mobile device. A user can breathe into a mouthpiece that forces the user's breath through a spirometric encoding assembly. The spirometric encoding assembly can be coupled to a mobile device using a spirometric encoding adapter. The spirometric encoding assembly can generate one or more outputs based on the user's breath; this data can be measured using one or more sensors of the mobile device. The data captured by the mobile device can be processed to determine the flow rate and/or volume of the user's breath. The flow rate and volume can be used to determine a variety of characteristics of the user's health, lung capacity, and/or for diagnosing medical conditions.