Constructed with 52mm thick carbon layer, it can effectively eliminate odors, filter particulates and purify the air to provide both you and your plants with clean and fresh environment when used in conjunct use with the corresponding size Duct Fan.  Instead of leaving the bottom section unused and wasted, it utilizes 100% of the carbon element. So if you are suffering from stale air condition and tired of gardening with organic fertilizer, sprays, odor gels or even incense, this real activated carbon filter is surely your optimal choice with 18 month life expectancy of continuous use!

Features:

• 4", 6", 8", 10", 12" Flange Sizes
• Activated Carbon Charcoal Filter
• Maintenance Free Design
• Safe and Effective Operation
• Cotton Filter Pad
• Pre-filter Included

Specification:

Package Content:

• 1 x Activated Carbon Filter