Abstract: A dental environmental filter is provided for the collection of heavy metals and other particles during dental or other procedures. The dental environmental filter incorporates a manifold with an inlet conduit and an outlet conduit, with an adjustable control handle on the top of the manifold and a baffle plate in the inside of the manifold. The manifold is sealed to the top opening of a collection chamber. During procedures which require withdrawal of fluids, the control handle and baffle plate are adjusted to a fluids mode which connects a internal adjustable conduit, which transverses through the baffle plate, with the lumen of the inlet and outlet conduits to form a continuous lumen with which to withdraw fluids through. During procedures which require the withdrawal of heavy metals or other particles, the control handle and baffle plate are adjusted to a solids mode which orients the baffle plate to face the both the lumen of the inlet and outlet conduits.