> I doubt that there is anything as perverse as voluntarily blocking your own breathing hole. Well, then I would recommend you to look more around you, very fe

> I doubt that there is anything as perverse as voluntarily blocking your own breathing hole. Well, then I would recommend you to look more around you, very few to no animals intake air directly through their trachea, we evolved noses to both filter the small particulate with nose hairs, change the temperature of the air and later evolved the use of smell So yeah, next time you go out I would recommend you to carefully review the faces of the beings you see around you and realize the existence and plurality of noses and "noseholes", and yes, noses themselves also inhibit oxygen flow vs "open trachea holes" Lastly, you are welcome to give yourself a tracheotomy if you'd like too, just be careful, or maybe not