The 4-Inch Air Carbon Filter is designed for eliminating odors and chemical irritants from all types of environment. Efficient in indoor grow environments, this filter can be also used in kitchens and bathrooms as well.Featuring high-quality Virging Australian activated charcoal, this filter catches all types of particles. The 1050+ RC 48 carbon is three times more efficient in comparison to other filter.With versatile applications, these filters can be used as both intake and exhaust filters in every space. The effective odor control feature keeps the air in grow tents and hydroponic setups flowing seamlessly at all times while eliminating pungent smells.The additional accessories such as the chargeable Velcro pre-filter and the carbon filter belts make it very easy to install in any type of environment, including grow tents.