For rooms up to 400 square feet. Surround Seal filter technology helps assure virtually all of the air circulated through the air cleaner passes through the HEPA filter.

Enviracaire 14520 Features and Benefits:

• 99.97% true HEPA filter.
• Recommended for a 20' x 20' room; 6 air changes per hour.
• Patented 360 degree air intake and discharge for effective air cleaning power.
• Clean air delivery rate (CADR) for tobacco smoke: 320.
• Universal replacement carbon pre-filter #38002.
• Replacement HEPA filter #25000.
• 3 speed controls.
• Three speeds.
• 5 year limited warranty.