Stadler Form Roger and Roger Big Dual Filter™ H14 Hepa + Activated Carbon

• The Dual Filter™ is a combination of an H14 HEPA filter and an activated carbon filter
• The activated carbon filter adsorbs gases such as bad odors, volatile organic compounds, tobacco smoke, formaldehyde, toluene, etc.)
  
• The HEPA H14 filter part filters viruses and bacteria as well as fine dust and pollen out of the air
  
• Compared to an H12 HEPA filter, the H14 HEPA filter has a greater density, enabling more particles to be filtered from the air per air change
  
• The Dual Filter™ will need to be replaced every 8-12 months
  
• Roger big requires 2 x Dual Filter™