▎ 摘　　要

NOVELTY - The machine has a box body (1) whose front end is provided with an exhaust inlet (1c) and a fresh air outlet (1b). A back end of the box body is provided with a fresh air inlet (1a) and an exhaust outlet (1d). A fresh air fan (5) is orderly arranged between the fresh air inlet and a heat recoverer to send fresh filtering and sterilizing air into a fresh air channel of the heat recoverer for heat exchange. An exhaust fan (6) is arranged between the heat recoverer and the exhaust outlet. The exhaust fan sends heat-exchanged exhaust air to the exhaust outlet from the exhaust air channel of the heat recoverer, where the heat recoverer is made of graphene material. USE - Bidirectional flow heat recycling fresh air purifying and sterilizing machine. ADVANTAGE - The machine is small in size, and has high gas heat exchanging efficiency and high sterilizing effect, and realizes fully heat exchange of gas and mounts occasion with limited ceiling height. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of a bidirectional flow heat recycling fresh air purifying and sterilizing machine. Box body (1) Fresh air inlet (1a) Fresh air outlet (1b) Exhaust inlet (1c) Exhaust outlet (1d) Fresh air fan (5) Exhaust fan (6)