Fitting around the neck, the Blaux Personal Fan is designed to provide a constant stream of air (1.9 cfm max.) to one's face and upper body for up to 30 hours before recharging. This horseshoe-shaped device includes: thermal-electric cooling plate, back cooling vents, adjustable three-speed fan, ionizer in the fan chamber (designed to reduce allergens/pollutants), and antibacterial filters inside the two fan intakes. Plugs into USB-type C port for charging.