Why not consider an air purifier as an office essential? The FPF30UH Air Purifier by SHARP is your choice for small rooms. The double filtration system helps clean the air that passes through the filters in two ways. The washable, microscreen pre-filter traps dust and other large airborne particles. Next, the True HEPA filter effectively captures 99.97% of particles from the air that passes through the filter from 0.3 microns and larger.