I was thinking to buy for my baby with 1 year and a half a nasal filters to avoid being contaminated.
Someone uses the "Defense Nasal Screens" nasal filters Shark Tank?
Those filters are effective? It really works? By using, we are free of germs, virus and bacteria?
It's hard to breathe with it? The airflow decreases?
I know that they are selling in medium size. It can be adapted to a baby?

thank you
Tania