Breathe-easeĢ XL Nasal Wash System with Lavage bottle includes everything needed for a proper nasal irrigation technique and can be used by children as well as adults. Breath-easeĢ XL Nasal Wash System. This quick easy to use system gently washes away allergens, dust, and pollens and may be used anywhere at any time. Custom Lavage bottle is designed for easy use and individual pressure control. Smooth flow, easy to squeeze bottle empties 100% from an upright position. Form fitting nasal cap fits any size nasal opening comfortably. Doctor developed and recommended for allergy and sinus conditions. May be used as both a hypertonic or isotonic solution. Includes 190gm container of Breathe-ease XL nasal moisturizing and irrigation solution.