The Blueair 503 HEPASilent Air Purifier combines the best of mechanical and electrostatic technologies to offer the highest quality, best performance and quietest room air purifier on the market today. Using patented HEPASilent technology and an efficient SurroundAir vent system, the BlueAir 503 Air Purifier effectively purifies air in rooms as large as 580 square feet, capturing 99.97% of the tiniest 0.1 micron particles on level one, including allergy-provoking pollen grains, dust mites, mold spores and pet dander particles. With the quietest operation in the industry, a very energy-efficient, and an award-winning design, the Blueair 503 Air Purifier is simply the best choice for anyone who cares about clean, pure air.

Quietest units in the industry: Sophisticated materials and precision engineering allow the Blueair 503 to clean indoor air without the noise associated with other units. Blueair's low-density "HEPA-Silent" filters clean larger volumes of air more quietly than any other unit in the industry. Even the housing is designed with quiet operation in mind, replacing sound-sonant plastic with noise-muffling steel.

SurroundAir: Blueair's efficient SurroundAir™ vent system delivers exceptional air exchange (up to 500 cubic feet per minute) without annoying drafts (clean air is distributed out of three sides of unit).

Patented HEPASilent™ Filter Technology: A revolutionary combination of advanced filter media and an encapsulated ion particle charging chamber makes it possible for the Blueair 503 air purification system to achieve better results than either mechanical or electrostatic technology alone. Blueair's patented HEPASilent filter technology is proven effective at capturing 99.97% of the smallest 0.1 micron particles. Standard HEPA filters measure efficiency at 0.3 microns. While a typical HEPA filter removes 99.97% of particles 0.3 microns or larger, Blueair's HEPASilent filters remove 99.97% of particles as small as 0.1 microns in size on it's lowest speed.

Easy to Use and Maintain
Plug it in, select the speed setting, and forget it. The Blueair 503 works so quietly, at first you may find yourself wondering if it's turned on. Just check the bright blue power-on light. Blueair filters require no weekly additives or filter washing. The grilles and powder-coated steel exterior are easy to wipe clean, and won't pick up grime and oily stains the way plastics can. When the filter needs to be replaced (twice yearly), just open the lid, lift out the old filters and drop the new ones in. No screws, hooks or tools and less than one minute of your time are required.

Features:

• Purifies up to a 580 square foot room
• HEPASilent technology that combines the best of mechanical and electrostatic precipitator technologies
• Exceptional filtration - 99.97% at 0.1 microns on speed 1
• Quietest operation in the industry
• Filter change indicator
• Easy rolling casters
• No ozone
• 5-year limited warranty
• Very energy-efficient
• Award-winning Swedish design

• Size: 26" H x 20" W x 13" D
• Weight: 35 lbs.
• Room size: 580 sq ft
• CADR: smoke 375, dust 375, pollen 375
• Speeds: 3