About this item

• Fits PU4020 Intense Pure Air purifier - room coverage up to 400 sq. ft.
• Replace on an average once a year - always monitor color of the granules if brown need to replace the filter
• Patented Rowenta NanoCaptur technology destroys permanently formaldehyde emitted by : cleaning products, pressed wood materials, building materials
• The NanoCaptur yellow granules inside the filter turn red if saturated, meaning it is the time to replace the filter
• The World Health Organization identifies formaldehyde as the most hazardous indoor air contaminant.