Airlift Scentre is a new, revolutionary way to provide 24 hour deodorized freshness. This battery-operated air deodorizing system allows 100% complete airflow and continuous release of fragrance. And with Airlift Scentre freshening up to 150 square feet of surface area, it,s far more effective than gels and most liquids. Airlift Scentre provides a full 30 days fragrance for almost every preference. The scents available are NABC Fresh Scent for light to medium fragrancing, while Cherry and Pina Colada are offered for those that require a stronger scent. The new and improved Airlift Scentre cabinet features a flow adjuster knob to determine fragrance intensity; tailoring fragrance level to each individual,s preference. The cartridge brackets have also been reinforced to insure greater durability through usual wear and tear.