Vicks Soothing Menthol VapoPads and Vicks Soothing Lavender and Rosemary VapoPads are uniquely designed to work with your Vicks humidifier to release soothing vapours. Each VapoPad is designed to release up to 8 hours of menthol or lavender/rosemary vapours to enhance your humidification experience and to help provide added comfort.