corona mask with 3m+moldex+alternate and visirholder and exhale

thingiverse

For use with TPU. This is a significant benefit of my Corona mask for cigarette filter tubes. It comes equipped with two hoses, one specifically designed for Moldex-Filters, and another for 3M-Filters. A lid is included to seal off unused hoses. If you can't obtain a Moldex or a 3M Filter, you can close one hose - if breathing through your nose, use the upper hose; if breathing through your mouth, use the lower hose to maximize filter duration - and fill the mask with wadding, such as Extractor hood filters with activated carbon for kitchens or alternative materials. The mask has an internal space designed specifically for this purpose, featuring a small door with a large knob as its hinge and a smaller knob to prevent unwanted opening of the door. Furthermore, it features an exhale vent located next to your nose, which can be easily inserted into place. This is complemented by a simple pressure relief valve, similar to those found in commercial face masks, allowing for easier breathing out while preventing the mask from loosening due to overpressure. If you don't want or need this feature, an alternative closing knob is included, printed directly below the valve. The hole can be used for oxygen tubes as well, provided it's modified with tape sealing or silicone sealing. Additionally, there are two nose bridges that can be used if you create a face shield. The mask has a support system in place to accommodate these bridges. LAST BUT NOT LEAST, THIS IS A CONCEPT ! Use in emergency situations (if no commercial masks are available) at your own risk. NO MEDICAL PRODUCT. Moldex and 3M are trademarks of their respective owners, and the hoses may fit for the filters they produce but have not been tested by 3M or Moldex, nor myself. It might only work if you provide the necessary size of the filter hooks in the hoses, but it may not provide the needed sealness of the original hoses at the original masks. If you have either 3M or Moldex Filters, use the proper mask mentioned and sold by 3M or Moldex for your own safety if possible. This item only provides a basic improvement to your defense against Corona, depending on the filters or filter materials used and the sealness to your skin, as well as the quality of your printout not having holes or cracks. It may only provide this by protecting you from drip infections and preventing you from touching your face while wearing it. Any liability resulting from the use of the item is excluded.