V-Air Solid Evolution Freshener refill, linen breeze fragrance, is a revolutionary multi-phasing air freshener cartridge. It contains a solid refill, no liquid or harmful propellants, no batteries required, the refill works with natural airflow. The special slatted design allows for optimum air movement around the refill. With its dual, organic seaweed, Carrageenan core and fragrance outer, the refill utilises multi-phasing technology. For use with the V-Air Solid Air Freshener dispenser.