CNET employs a rigorous testing methodology for leaf blowers, going beyond simply observing their leaf-clearing capabilities. Two primary metrics are measured: sound level and raw air power. Sound level is crucial given increasing noise restrictions on outdoor power tools. Each blower’s noise output is measured at a representative operating distance, perpendicular to a sound level meter. Ryobi emerged as the quietest in their testing, significantly quieter than the rest, while the Enhulk Max Pro Series 58V earned the title of loudest.
To quantify air power, CNET devised a unique “air cannon” test. Constructed primarily from 3-inch PVC pipe, this apparatus includes an air gate for controlled release of air, a restriction plate for projectile safety, a base for stability, and a 5-foot barrel. The projectile, a sand-filled plastic tube weighing 210 grams, is loaded into the cannon. The leaf blower’s nozzle is secured to the input port, the blower is revved to full power in the chosen mode (normal or turbo), the air gate is opened, and the projectile is launched. The distance traveled by the projectile is measured and averaged over multiple attempts.
This method provides a quantifiable measure of each blower’s air output, translating perceived power into concrete data. The Greenworks Pro model achieved the longest average launch distance, demonstrating superior air power even compared to the much more expensive professional-grade DK2 blower. This test allows for objective comparison, revealing performance differences not readily apparent from manufacturer specifications.
The air cannon test provides intriguing insights when comparing results to manufacturer-provided specifications. For example, the Milwaukee and Craftsman blowers have similar CFM (cubic feet per minute) and mph ratings. However, the Craftsman consistently outperformed the Milwaukee in the air cannon test, exceeding it by over 10 feet in both normal and turbo modes. This discrepancy underscores the value of real-world testing, as advertised specifications may not fully reflect actual performance.
The combination of sound level measurement and the air cannon test offers a comprehensive performance evaluation of leaf blowers. By measuring both noise output and air power, CNET provides consumers with data-driven insights that go beyond subjective assessments. This data empowers consumers to make informed purchasing decisions based on their specific needs and priorities, whether prioritizing quiet operation or maximizing blowing power.
CNET’s testing methodology reveals the importance of independent, objective evaluation. While manufacturer specifications provide a baseline, real-world tests offer a more nuanced understanding of product performance. The air cannon test, in particular, provides a unique and quantifiable measure of air power, a key factor in the effectiveness of a leaf blower. This rigorous testing approach empowers consumers with the information they need to select the best leaf blower for their individual requirements.
