One of the best products for eliminating the odors associated with indoor hydroponic gardening is a hydroponics carbon filter. These filters are packed with activated carbon which is well known for its capacity to absorb odors and other impurities in air or water. The hydroponics filters can be added to the ventilation system of indoor hydroponic gardens in order to stop the plant odors from spreading throughout the house. Not only does carbon filters hydroponics eliminate plant odours, but it also helps with the control of mold and bacteria that can develop in the hydroponics grow rooms. Two of the best types of carbon filters are the Rhino filters and the Phresh filters. To make setting up a ventilation system easier, there are air filter kits are sold which contain the filters along with the fan and twenty five feet of ducting. These carbon filter kits are easy to install and require no maintenance. The price of a carbon filter kit is great considering how much it would cost to purchase all of the contents separately.