Because people with breathing problems are most likely to buy air purifiers, their quality should be checked and verified before purchase. Studies have shown that some air purifiers such as table top and console types remove air irritants quickly in a small confined room and hence can be used for a short period of time thus not giving them any chance to further irritate health or skin. What one can draw from these findings is that HEPA purifiers are a safe bet compared to ionic air purifiers. Furthermore, quality of these devices play an important role in protecting one’s health and living conditions. Certain air purifiers come with special features that are ideal for a set of functions. For example. The Germ Guardian purifiers are the best choice for removing cigarette smoke from the air. These purifiers remove almost all pollutants with charcoal filters and capture tar and smoke odors effectively. Similarly, the Aeromax 200 are a preferred choice for removing pollen from the air.