The Enviropure Charcoal Filter Wrap is made with HEGA (High Efficiency Gas Absorption) material, which is highly effective at reducing pollutants such as tobacco smoke, pet odors and lingering cooking odors.

The package includes: (1) Enviropure Charcoal Filter Wrap

How often to change your Enviropure Charcoal Filter Wrap: Change every 3-6 months. For best results, change every 3 months for homes with pets or smokers.