A stack vent filter, also known as a vent filter, stack filter or stink pipe filter, is a device that is installed on the vent stack of a plumbing system to prevent the release of foul odors and harmful gases into the environment. The vent stack is a pipe that connects to the plumbing drainage system and extends above the roof of the building. Its purpose is to allow air to flow in and out of the plumbing system, which is necessary to prevent the buildup of pressure that could cause pipes to burst or fixtures to siphon water.The stack vent filter works by capturing the odors and gases that are released from the plumbing system and filtering them out before they are released into the air. The filter typically consists of activated carbon, which is a porous material that can absorb and trap the odors and gases.In addition to preventing unpleasant odors and harmful gases from being released, stack vent filters can also help to reduce the risk of clogs in the vent stack by capturing debris that may be carried up from the plumbing system. This can help to prevent the buildup of blockages in the vent stack that could interfere with the flow of air and water in the plumbing system.
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