The lifespan of an air exchanger can vary depending on the type of air exchanger you have and how well it is maintained. Here are some general guidelines for the lifespan of common types of air exchangers: Heat recovery ventilators (HRVs): The lifespan of an HRV is generally 10-15 years. Energy recovery ventilators (ERVs): The lifespan of an ERV is generally 10-15 years. Air-to-air heat pumps: The lifespan of an air-to-air heat pump is generally 10-15 years. Central air conditioners: The lifespan of a central air conditioner is generally 10-15 years.