I think that Olba's Natural Inhaler works so well at clearing my nasal passages. When using this product I inhaled the inhaler through each nostril a total of two puffs per nose, once per day. I felt the cool sensation go into my nose and down into my throat. It does not hurt my nose or throat at all and opens my nasal passages to be able to breathe better. This is a great inhaler for me to use because I suffer from severe sinus infections and allergies making me have a lot of stuffiness and pressure in my nasal passageway and head. I will definitely look into buying Olba's Natural Inhaler to help me breathe better. I would recommend this product to anyone who suffers with seasonal allergies and sinus infections.