[NEOPMask] - Printable respirator with exchangeable filter [COVID-19 Aid]

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More details at: https://3dsprint.wixsite.com/printable-respirator A 3D printable respirator mask is available, designed to reduce the risk of external infiltration by minimizing the intake area. The mask features a removable and customizable filter, comprising just two components to minimize sealing issues between parts. A thick neoprene strip ensures a tight seal around the face, regardless of facial shape or size. This product is intended for public use as a precautionary measure, helping conserve professional masks reserved for medical personnel. The respirator can be sterilized using an alcohol solution or heat up to 60°C without sustaining damage. Added Filter_Cap_Angle. Users are advised to employ a HEPA filter or piece of cotton when available. Air intake slots on the mask are angled to divert airflow, forcing it to enter at an angle and pass through more of the filtering media. This design enhances filtration by diffusion while minimizing the exposed surface area to droplets. Breathability remains unaffected, as the total intake area is comparable to other versions. Filter_Cap_Angle was optimized for improved air intake on filter areas. Filter_Cap_Angle_SOS, featuring a morse code SOS symbol, has also been added. Those interested in customizing their cap can contact the creator via this platform or the linked website. The cheeks area of the mask has been slightly smoothed and the bayonet lock correctly aligned. A kid-friendly version, 3D_Kid_Printable_RespiratorMask_FilterMod_v6, has been created with a reduced size of approximately 10% to accommodate smaller faces. The filter area remains unchanged, allowing users to continue employing the same filter cap. For detailed dimensions, users can download the tech data from the website (currently available in Italian but easily understandable through images). A new version featuring reinforced areas near string holes has been added, ensuring no damage even with extreme tensioning of strings. It's worth noting that many DIY masks feature a wide intake area to reduce pressure drop and increase filter efficacy, which is suitable for high-level filters like FFP3/FFP2.