Dry air wreaks havoc on your skin and irritates your eyes, whether you live in a cold or a warm climate. If you are suffering from cracked, dry skin or itchy eyes, it is time to invest in a humidifier. Even a little bit of moisture in the air can go a long way when it comes to reviving dry skin and creating a more balanced atmosphere inside your home. If you live in a warm, dry area, a cool mist humidifier is a great choice. This product is quiet and effective, and the level of humidity is adjustable on the majority of models. The warm mist humidifier is for those who want fast relief from cracked, dry skin and other cold air-related problems, including dry sinuses and nosebleeds. Most humidifiers come with customizable settings, but some models use filters that require replacement at specific intervals. eBay's dependable sellers have thousands of new and used machines available as well as filters and replacement parts.