New Air Design Card Made in Japan Purchased for around 3,500 yen. The outer packaging is a little dirty. I had a stockpile, but I won't be using them, so here you go. The Air Design Card is a "cluster ion + far-infrared ray generating card" developed by the late Dr. Hideyuki Nakagawa, an engineering Ph.D. and also a developer of Plasmacluster (registered trademark of Sharp Corporation). It is expected that the ions generated by the weak energy produced by the card will alleviate various air troubles. It is an eco-friendly air purification and deodorizing card that requires no power. Because it is a card type, it can be easily carried around, and the ion effect is expected to alleviate various threats in the air such as pollen, bacteria, allergens, and PM2.5. Furthermore, it is a high-performance card that can also be expected to have various effects such as deodorizing effects, far-infrared ray effects, antioxidant power, and brainwave stabilization. The evidence is the result under the evidence conditions and is not a demonstration test in the actual use space. *The range of effects may vary depending on the environment. Air Design Card Air Design Card Made in Japan Ion Cleaner (with dedicated strap) Ion Card-type air purifier Electronic mask Antibacterial Antiviral Deodorizing effect Neck hanging type