Erie Air Hyper Block Mask (Made in Japan) Refreshing Cool Regular Size 6 masks x 6 bags = 36 masks Shipped via Rakuraku Mercari Delivery. [Product Description] ● Made in Japan, 3-layer mask. Uses wide, stretchy ear loops that reduce stress on the ears. ● High-breathability material blocks discomfort from stuffiness. ● Comfortable wire around the mouth makes breathing easier. ● Xylitol is applied to the inner layer non-woven fabric for increased coolness! ● Endothermic effect from the reaction of xylitol and moisture in your breath.