IHADA Aller Screen EX 50g New, Unopened A spray that protects against pollen, PM2.5, and viruses. Using unique patented "microparticle adhesion prevention technology," it inhibits pollen from attaching. Spraying it prevents "allergen substances (pollen, PM2.5)" and "viruses" from adhering to the skin, hair, etc. Price not negotiable. New, unopened, and stored at home. Will be shipped via postal mail.