Set of 2, unused Removes over 99% of viruses and bacteria in the air! New antiviral and antibacterial technology based on catechin! Since it contains ingredients found in tea, it's safe for homes with small children and pets! Antibacterial and antiviral aroma water. Just add it to your humidifier. Aroma-scented bacteria and virus protection. Grapefruit scent Size: 65φ・160H Material: Cateprotect, purified water, DPG, citrate, dipotassium glycyrrhizinate Capacity: 290ml * "Cateprotect" is an antibacterial and antiviral technology derived from natural catechin, developed in joint research with the Institute of Scientific and Industrial Research, Osaka University. * For ultrasonic humidifiers only Will be shipped in a cardboard box.