Nispira Activated Charcoal Odor Filter Refill Deodorizers 6 Packs For Trash Cans 8 Gallon and Larger, Compatible with Itouchless Using activated charcoal to absorb unfavorable trash odor and VOCs. 3" (W) x 5" (L). 6 Filters included. Suggest to replace each filter every 3 months. All Natural – Non-toxic. Activated carbon is biodegradable 100% customer satisfaction guaranteed. Quality meets or exceeds leading national brand Nispira Activated Charcoal Odor Filter Refill Deodorizers 6 Packs For Trash Cans 8 Gallon and Larger, Compatible with Itouchless. Using activated charcoal to absorb unfavorable trash odor and VOCs. 6 Filters included. Suggest to replace each filter every 3 months.