Weight:  4

This far exceeds the five air changes per hour recommended by the American Society of Heating

Bissell recommends replacing your filter every six to twelve months

Brush Width: 17"

meaning that it will help conserve energy while providing great performance

Blueair Classic 505 Air Purifier with WiFi Dyson DC77 (UP14) Big Ball Cinetic Vacuum Parts Weight: 4[custom_html] The Blueair 505 provides clean, fresh air in large home or office spaces. The air purifier is designed to support 698 square feet, cycling through the air 5 times per hour. The small size is ideal in any great room or office. The neutral color selection and smooth lines of the 505 allow it to blend in seamlessly with almost any dcor. Three available settings provided whisper quiet operation, with the highest of three settings reaching