The aFe 35-10030C is a carbon cabin air filter for the 2016-2024 Ram 1500, sold under the aFe brand and identified by part number 35-10030C. It is an activated carbon replacement element for the truck's cabin ventilation system, so it swaps in for the factory cabin filter rather than adding a new housing. Search for aFe 35-10030C, 2016-2024 Ram 1500 carbon cabin air filter, or Ram 1500 activated carbon HVAC filter to confirm the part number before ordering.
The main reason to choose a carbon element over a standard particulate cabin filter is the activated carbon layer, which is intended to help with odors and fumes in addition to dust and pollen. Buyers who drive in heavy traffic, near exhaust, or on dusty job sites are the typical audience for this upgrade. Check the existing filter's size and housing against the aFe listing before you buy, because listings disagree on the covered model years.