We live in Stockton CA and the air is far from great, so we have to have air filters
My son has asthma, and this helps alot.  We live in Stockton CA and the air is far from great, so we have to have air filters, med's, and this product on hand when his sinus begin to act up.  So thank you for this product, it is a life saver for my son Frank G.
Rating: 5 stars