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Sharp® 259 Sq. Ft. HEPA Air Purifier
Sharp® 259 Sq. Ft. HEPA Air Purifier 0
Sharp® 259 Sq. Ft. HEPA Air Purifier 1
Sharp® 259 Sq. Ft. HEPA Air Purifier 2
Sharp® 259 Sq. Ft. HEPA Air Purifier 3
Sharp® 259 Sq. Ft. HEPA Air Purifier 4
Sharp® 259 Sq. Ft. HEPA Air Purifier 5
Sharp® 259 Sq. Ft. HEPA Air Purifier 6

Sharp® 259 Sq. Ft. HEPA Air Purifier

Model #: FP-K50UW
At a Glance
Sharp’s exclusive patented Plasmacluster® Ion technology eliminates microscopic pollutants that traditional filters cannot trap, by replicating nature’s own cleaning process of producing positive and negative ions from water vapor in the air. These ions refresh the air without any harmful chemicals or perfumes.

Get to know this product.

A breath of fresh air in any medium-sized room, the Sharp FPK50UW Plasmacluster Ion Air Purifier with True HEPA Filtration effectively reduces pollen, dust, pet dander, smoke, germs, bacteria, viruses, odors, mold, and fungus in your living space. There is a three-stage filter system including an activated carbon filter and long-life True HEPA filter, which captures 99.97% of particles as small as 0.3 microns from the air that passes through it. The microscreen pre-filter for larger particles is washable and helps to extend the life of your filters. Patented Plasmacluster Ion Technology disperses positively and negatively charged ions throughout the room to safely break down microorganisms and odors (even those trapped in fabric, carpeting, and drapery!) The FPK50UW air purifier is an ideal solution for allergy sufferers, asthmatics, pet owners, and smokers, and best used in a bedroom, living room, study, or exercise room. "Plasmacluster Express Clean" gives you sixty minutes of high-density Plasmacluster Ion production and high-fan speed for an extra boost of clean when you need it, and a hands-free return to the prior mode when complete. The unit has LibraryQuiet™ operation (as quiet as 22 decibels, or the sound of rustling leaves) and is ENERGY STAR® rated, so you can run the unit continuously while saving money and energy.

Cleaning the air you breathe through true HEPA filteration

True HEPA filtration is ideal for removing common household allergens such as dust, pollen, pet dander, and smoke from the air. As a large room air purifier and humidifier with true HEPA filtration, which removes 99.97% of airborne pollutants as small as 0.3 microns, including dust, pollen, pet dander, and smoke particles, more particles can be captured when compared to a HEPA-type filter.

Energy efficient with library quiet™ operation

Sharp Library Quiet™ air purifiers blend in with your everyday life and allow for a peaceful night's sleep. The unit has LibraryQuiet™ operation, as quiet as 22 decibels, making it the perfect sleep solution. The Sharp FPK50UW Air Purifier is ENERGY STAR® rated and highly efficient, so you can run the unit continuously while saving money and energy.

  • Recommended for Medium Room Areas up to 259 sq. ft.
  • Long-Life TRUE HEPA Filter Lasts Up-to 2 Years
  • Plasmacluster Ion Technology Eliminates Microscopic Pollutants That Traditional Filters Cannot Trap
  • Proven Effective in Reducing Certain Germs, Bacteria, Viruses, Mold, and Fungus
  • True HEPA Filter Captures 99.97% of Particles as Small as 0.3 Microns
  • True HEPA Filtration is Ideal for Removing Common Household Allergens
  • Three Manual Fan Speeds Plus Express Clean
  • ENERGY STAR® Rated, AHAM Verified Tested, California Air Resources Board (CARB) Certified
  • CADR: Smoke (167), Dust (171), Pollen (188)
Useful Documents




Noise51(Max) / 22 (Low)
Room Coverage259 sq. ft.


Fan SpeedsMax / Med / Sleep
OFF Timer (hours)2 / 4 / 8 hours
Quick CleanYes
Light ControlOn / Off
Plasmacluster Express CleanYes, Strong Airflow for 60 Minutes
Plasmacluster Ion ModesOn / Off
Plasmacluster Indicator LightYes
Maintenance Indicator LightYes
Power Cord Length6.6 ft.


Pre FilterYes, Back Panel
True HEPA FilterYes, Up-to 2 years Model: FZ-K50HFU UPC: 074000663824
Active Carbon Deodorizing FilterYes, Up-to 2 years Model: FZ-K50DFU UPC: 074000663831


Shipping Dimensions17.2" x 23.5" x 10.4"

Misc. Specs

Width (in.)15.1
Appliance ColorWhite
Depth (in.)8.2
Height (in.)21.3
Color Finish NameWhite
Manufacturer Warranty1 Year Parts & Labor
Product Weight (lbs.)11
WarningProposition 65 Warning for California Residents