Designed for portability, travel and fitting into tight spaces, the Alen T500 is the perfect travel companion. Its light weight and built-in handle make the Alen T500 easy to move around. The Alen T500 packs full-size performance in a sleek, compact tower design that is as powerful as it is quiet. Its nearly silent sound profile has been carefully engineered to provide a steady and restful tone. The portable tower features an LCD panel with intuitive controls, allowing you to adjust settings with just a quick touch of a button. Two color options let you pick the best match for your home decor, with additional inlays available in T500 Designer models. Alen offers four different HEPA air filters to meet your clean air needs. All four remove dust and allergens, but each is uniquely designed to combat other airborne concerns, from mold to pet dander to smoke and more.