Breath Sampling Filter Assembly for Sensor Accuracy

The patent applies preliminary action by introducing heat dissipation and humidity removal components (such as cooling walls and drying agents) into the breath sampling device. These components pre-process the breath sample by reducing its temperature and humidity before it reaches the sensor, thereby eliminating the adverse effects of high temperature and humidity on measurement accuracy without requiring complex external processing systems

The patent uses intermediary substances or components (such as cooling walls that act as heat sinks, drying agents like calcium chloride or silica gel, and humidity removal membranes) placed between the breath sample and the sensor. These intermediaries absorb excess heat and humidity from the breath sample, mediating the interaction between the high-temperature/high-humidity breath and the temperature-sensitive sensor to ensure accurate measurements

The patent merges multiple functions into integrated components. For example, the filter assembly combines particle filtration, heat dissipation, and humidity removal functions into a single multi-functional unit. The cooling walls are integrated directly into the sampling chamber structure, and drying agents are incorporated into filter elements, thereby achieving temperature and humidity control without adding separate complex subsystems

The patent employs thin-film humidity removal membranes and flexible drying agent layers that can be easily integrated into the device structure. These thin-film components provide effective humidity control while occupying minimal space and adding little structural complexity, allowing the device to maintain simplicity while achieving accurate measurements