The portable heater has a fan-forced design to help disperse heat throughout your space. The fan-only setting can be used to help you stay cool during the warmer months. Simple, easily accessible control knobs allow you to quickly adjust the thermostat and switch between the unit's 2 heat settings. The personal heater has a compact and lightweight design that makes it a breeze to move from room to room as you handle different tasks throughout the day. The portable heater runs discreetly in the background, making it a great option for use in areas like offices, dorms and bedrooms where a quiet environment is essential. PTC heating has low working temperature and function of automatic thermostat control with long life and energy efficient feature and it will make no noise when working, creating a comfortable and warm atmosphere for you to sleep sweetly.