Whirlpool WP510 Air Purifier with extra filters. Retails for $240 on amazon. Extra filters included cost $80 on amazon. Also known as WP500p. This is a high end air purifier. True HEPA Filter: captures 99.97% of dust and allergens as small as .3 microns such as household dust, pet dander, mold spores and plant pollens. Choose 1 of 4 fan speeds: Low, medium and high fan speeds are supplemented with the turbo mode, which runs at the highest fan speed and is perfect for people with extreme allergies or overly-dusty rooms Available in White or Black: Choose the color that best fits your home decor. Easily Exchangeable Filters: It’s easy to remove the HEPA and pre-filters, which need to be replaced annually and every 3 months, respectively. To ensure stated product performance, use only Certified Whirlpool Replacement Filters. Compact Size: You can place it just about anywhere thanks to its compact dimensions: 20.55” x 10” x 24.13”. Unique size and contemporary design makes it a perfect fit in smaller rooms or office spaces. The perfect gift for family, friends, and office mates.