With the COVID-19 pandemic in 2020, global interest in air quality has increased, and demand for air purifiers and air conditioners equipped with these functions has increased. Under these favorable market conditions, major Japanese manufacturers have upgraded their air purification technologies, installed them in their products, and sold them in the domestic and global markets. nanoe X is Panasonic’s technology that collects invisible moisture in the air and applies high voltage to it to produce hydroxyl radicals or OH contained in water.