• Emit cool mist
• Safest option to use around children to avoid hot water accidents
• More effective in larger areas and warmer climates
• Some models are filter-free
• Can emit warm or cool mist
• Quietest, most energy-efficient humidifier option
• No filters to replace
• Emit cool mist
• Self regulate to automatically adjust humidity levels
• Generally require filter maintenance
• Emit a warm vapor and slightly increase room temperatures
• Some units are compatible with inhalants and essential oils
• Work best in cold climates and in smaller areas
• No filters to replace