Inspired by the larger M-19 MAPR (Motorized Air Purifying Respirator) used by frontline workers, this project aimed to miniaturize the design for daily, personal use. 🛠️ Key Innovations: Reduced size of respirator for regular use. Combined HEPA-filter-based respirator with a regular face mask instead of a helmet/face shield. Focus on user comfort, breathability, and wearability.  

Electronics Design: Core component: 12V Turbofan for air intake Power source: Rechargeable battery (~8.4V via 2 cells in series) Voltage boost: Buck converter to increase voltage to 10V+ for efficient turbofan operation Prototyping: The final design was referred to as “Rebreather” or mini-MAPR. 🧪 Design Highlights: Fully 3D-printed casing Two compartments: one for the filter and one for electronics Secure internal slots to prevent wire damage or disconnection Reusable, modular, and maker-friendly