Gas remix stimulator

A kit comprising:

• an air manifold with three terminal ends, including an atmosphere end, a respiratory end and a mixing end;
• the air manifold further including four ports, including 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;
• wherein the atmosphere port is fluidly coupled to the atmosphere mixing port, the respiratory port is fluidly coupled to the respiratory-mixing port, and the respiratory port and atmosphere port are fluidly isolated from each other within the air manifold;
• a plurality of reservoirs, each reservoir in the plurality having a unique volume capacity;
• a coupler having a first end and a second end and an open interior between the first end and the second end, the first end being configured to couple to the mixing end, and the second end being configured to couple to one reservoir in the plurality of reservoirs;
• and
• a straw that is configured to be removably coupled to the respiratory port and to extend through the coupler and into the one reservoir.

A kit comprising:

• an air manifold with three terminal ends, including an atmosphere end, a respiratory end and a mixing end;
• the air manifold further including four ports, including 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;
• wherein the atmosphere port is fluidly coupled to the atmosphere mixing port, the respiratory port is fluidly coupled to the respiratory-mixing port, and the respiratory port and atmosphere port are fluidly isolated from each other within the air manifold;
• a plurality of reservoirs, each reservoir in the plurality having a unique volume capacity;
• a coupler having a first end and a second end and an open interior between the first end and the second end, the first end being configured to couple to the mixing end, and the second end being configured to couple to one reservoir in the plurality of reservoirs;
• a straw that is configured to be removably coupled to the respiratory port and to extend through the coupler and into the one reservoir;
• and
• one or more restrictor plates, each of the one or more restrictor plates having a opening therethrough that reduces the cross-sectional area relative to a cross-sectional area of the atmosphere port.