Use for: nasal allergies, dryness & hay fever; sinus pressure & nasal stuffiness; nasal symptoms from flu & cold; nasal irritation from occupational & home dust, fumes, animal dander, grass, pollen, smoke, etc.; post nasal drip & nasal congestion. You can use the premixed packets with any nasal irrigation device. Daily rinsing is safe and will keep your nasal passages clean, healthy and open. Other important features include: Easy to use, comfortable and smooth-flowing saline nasal irrigation; Soothing, non-burning and non-stinging; Non-sedating nasal relief; Excellent for cleansing prior to use of nasal spray medications; Suitable for use after sinus surgery or during pregnancy, consult your physician with concerns; Can be used as a pH balanced and isotonic solution with one packet, or a hypertonic solution with two packets; Contains USP grade sodium chloride and sodium bicarbonate (purity level 99% or higher); Drug-free and preservative-free; Isotonic or hypertonic (with 2 or more packets). Contents: 100 Packets of USP grade (Purity level 99% or higher) sodium chloride and sodium bicarbonate mixture (pH balanced, isotonic and preservative free) (100 packets make 24,000 mL (800 fl oz) of solution). Educational brochure including directions for use and warnings.