The Sharp FPF30UH Air Purifier with True HEPA Filtration is ideal for small bedrooms and home offices. This air purifier model effectively reduces pollen, dust, pet dander, and smoke in your living space. The long-life, True HEPA filter lasts up-to 2 years, and captures 99.97% of particles as small as 0.3 microns from the air that passes through it. There are 3 manual fan speeds and a special Express Clean cycle which runs the Max fan speed for 60 minutes before returning to the previous setting. The FPF30UH has LibraryQuiet™ operation, as quiet as 23 decibels, making it the perfect for the nursery, bedroom or small office. When you turn the unit off, the convenient Auto-Resume feature remembers your last setting when you turn it on again. And the Sharp FPF30UH is ENERGY STAR® rated, so you can run the unit continuously while saving money and energy.