▎ 摘　　要

NOVELTY - The utility model relates to the technical field of fresh air ventilator, specifically to a fresh air ventilator with good filtering effect, comprising a fresh air ventilator main mounting groove, a filter frame and a first filter plate; the inner part of the first filter plate fixedly connected with a first filter screen; the other side of the inner wall of the filter frame fixedly connected with a second filter plate; the inner part of the second filter plate fixedly connected with a second filter screen. The utility model is provided with a first filter plate, a first filter screen, a second filter plate, a second filter screen; placing groove and graphene filter block, so that the fresh air ventilator main body can further absorb the air inlet and air outlet of the flowing air, which greatly improves the fresh air ventilator main body to filter effect of the air; in the actual use process, working staff the fresh air ventilator main body; The air inlet fan in the fresh air ventilator main body is used for quickly extracting the external air.