Husqvarna is a popular and reputable brand that markets many products that can help you trim, clean, and tidy your lawn and garden. These two units look almost identical but there are some differences that make them stand apart one from the other: The main difference between these two leaf blowers is the airflow: •The 150BT version has a speed of 251 MPH and a 434 CFM airflow, whereas the 350BT model features a 180 MPH speed and an airflow of 494 CFM; • The 150BT model comes with an ergonomic harness, whereas the 350BT alternative features a low comfortable handle.