The stuffiness and "by the book" approach no longer applied, and fashion instead became more about the individual himself.
If nasal stuffiness is persistent, consider investing in a full face mask that covers mouth and nose.
Stuffiness and sneezing can often be helped by replacing the filters in the machine.
They will not relieve all of the symptoms associated with colds and allergies, only the stuffiness.
Some of the other adverse effects are chest tightness; wheezing; nasal stuffiness; dry mouth, nose, and throat; sore throat; respiratory depression; sneezing; and a burning sensation in the nose.