Portable fans are small, lightweight devices designed to provide a cooling breeze in various settings. They can be powered by batteries, USB connections, or electrical outlets, making them convenient for use at home, in the office, or while traveling. Their compact size allows for easy transport and placement in different locations. These fans come in various styles, including handheld, clip-on, and stand-alone models. Many portable fans also feature adjustable speeds and oscillation options, allowing users to customize airflow according to their preferences. They are popular during hot weather and can help improve air circulation in confined spaces.