The Philips Avent Ultra Air pacifier for babies 6-18 months is designed with a lightweight, breathable shield for baby’s sensitive skin. Four extra-large holes in the shield allow for maximum air flow, so skin stays drier while soothing. Comes with 2 pacifiers packaged in a sterilizer/carrying case that can be used to sterilize them with water in the microwave and transport them. Unisex Pacifier.