Honeywell Enviracaire Air Purifier - 17 x 22ft - 374Sq. ft. - White. From SkyBox. Click on the image below for a preview. 
Air Purifier 17' x 22' Room Features: • Air Filter: HEPA - 99.97% airborne particles
• Coverage: 17 x 22 ft/374 Sq. ft. - Room; CADR: 250
• Particle Removal: 0.3 nm Removal Rate; Color: White
• Buttons & Controls: 3 speeds; Certifications & Standards: AHAM Certified
• Recycled: No; Recycled Content: 0%; Post-consumer-waste%: 0% Click on the image above for more details.
Air Purifier 17' x 22' Room - Preview | 
