High Volume, Low Pressure Flush Of Mucus & Nasal Irritants For Effective Nose Congestion Relief. Non-Medicated Preservative-Free Isotonic Irrigation Solution For Washing Of Nasal Passages & Sinus Cavities. Helps To Wash Excess Mucus, Irritants, Pollen To Relieve Congestion And Alleviate Breathing. Flo Sinus Care Is Natural & Gentle To Use; Does Not Sting Or Burn Delicate Nasal Tissues. Flo Sinus Care May Be Used During Pregnancy & Breastfeeding.