Aroscent Portable Clean lines, quality and great colors describe one of AromaTech’s bestsellers, the Aroscent Portable. Thanks to its cold-air diffusion technology combined with the ultimate in portability the Aroscent Portable is ideal for scent solutions where flexibility is key. Aroscent Wall With the same sleek design and capacity as the Aroscent Portable, the Aroscent Wall is the stylish option for a wall-mounted scent delivery solution. Available in 9 different color combinations and featuring AromaTech’s patented cold-air diffusion technology, the Aroscent Wall compliments any interior with a breath of fresh air.