MAINSTREAM ENGINEERING CORP — Department of Defense SBIR Phase I: CBD14-103

Description

This proposal details the approach for developing smart and enhanced SCBA equipment. Current SCBA devices use adsorbents to remove CO2; however, they generate heat as a byproduct of reaction which ultimately leads to hot and humid breathing air and mask fogging. An near zero-heat generation CO2 removal device that is compact, light-weight, and low-power will be designed and demonstrated. This device does not generate appreciable heat and even regulates humidity, which provides more thermal control and better air quality. Mainstream will implement a temperature, humidity, CO2, and O2 micro-sensor array within a full-face mask for feedback control over system components with an integrated microcontroller. The microcontroller optimizes the system performance and the CO2 removal system, which results in lower and more comfortable breathing temperatures. Mainstream will demonstrate the micro-sensor and controls with the CO2 sequestration device to determine the power requirements and evaluate the rate of CO2 removal. In addition, an optimal delivery system for breathing air will direct inhaled air over the lens (while preventing contact with exhaled air) as an anti-fogging measure. A combination of these components will result in increased comfort and mobility for the user, and a safe, reliable SCBA system.