Cigar Oasis humidifiers are reliable and maintenance-free cigar humidifiers. There are various Cigar Oasis cigar humidifier models available. The most popular are the Ultra, the XL, XL Plus and the II XL. Cigar Oasis is considered a very reliable humidor humidifier and they're made for serious cigar smokers. Cuban Crafters is a Cigar Oasis authorized dealer so you know you're getting the best price and the full manufacturer's warranty.