Choose a leaf blower by what it must move and how much ground it must cover, then compare air speed and air volume together. Air speed describes how fast the air moves; air volume describes how much air is delivered over time. Clearing a small gap and moving leaves across a broad area are different tasks. The highest speed on the box cannot decide which machine suits the job.
When equipping a grounds-maintenance crew, follow “Which one blows harder?” with a more useful question: “Are you clearing a path after trimming, or moving a large accumulation of leaves on grass?” The answer may put the customer in a different equipment category.
Why 918 km/h and 305 km/h cannot decide the comparison
Two Milwaukee products illustrate the difference. These are the manufacturer's published maximum figures, not results from a head-to-head clearance test.
| Manufacturer's equipment | Published air speed | Published air volume |
|---|---|---|
| M18 BLHSB high-speed blower | Up to 918 km/h | Up to 1.1 m³/min |
| MX FUEL backpack blower | Up to 305 km/h | Up to 22.7 m³/min |
The M18 BLHSB product page also lists 6 mm, 10 mm and inflator nozzles. The backpack unit's official announcement, dated 15 April 2026, describes applications including construction-site and landscape cleanup.
The first has the higher speed figure; the second delivers a greater volume of air. Ranking them by km/h alone leaves out the amount of air and the attachments. Dividing their air-volume figures does not establish how many times faster one clears a site, either. That calculation contains no information about the material, ground or operating method.
These specifications belong to Milwaukee, not FORZMAX. They also do not establish battery or attachment compatibility between the brands.
CFM needs a measurement location
CFM means cubic feet per minute, a unit of air volume. So does m³/min, expressed in cubic metres per minute. Neither belongs in the same comparison column as speed in km/h, m/s or MPH. MPH means miles per hour.
Check where the volume was measured. The US Husqvarna 560BTS page lists 890 CFM in the housing and 631 CFM in the pipe and at the round nozzle. One machine has different values for different fields.
Keep the original labels when preparing product information: “in housing,” “in pipe” and “at nozzle.” If one supplier gives a housing value and another gives a value with the blowing tube fitted, the larger number alone does not prove better clearance.
Some specifications also state blowing force in N, or newtons, a unit of force. This is a different measure from speed or volume. Keep its test conditions, too. Combining a maximum speed with a separate volume figure does not produce a measured blowing-force result.
Find out what “clearing leaves” means
Consider two example jobs. After trimming, a crew collects scattered leaves from a paved path and moves to the next small work area. Elsewhere, it must move a broad accumulation of leaves on grass, including damp leaves stuck together. Both are leaf-clearing jobs, but a demonstration of the first cannot stand in for the second.
For the short cleanup, start with equipment that is easy to carry, start, stop and direct. Handling between work areas can matter as much as the brief blowing task. For the larger job, put the actual leaf condition and working area into the trial. Observe whether the operator can keep material moving, what movements are needed and how energy will be supplied.
A handheld unit is convenient to pick up; a backpack also involves harness adjustment, putting it on and transport. Carrying a machine on the back does not eliminate fatigue. Handle position, total working weight and individual fit need a practical check. STIHL's blower buying guide likewise distinguishes short, small-area work from larger tasks when discussing handheld and backpack equipment.
Dealers can give each model a clear job in the range. Describing everything as “powerful and suitable for all applications” leaves customers guessing between similar-looking specification sheets.
A sample trial needs more than an empty patch of ground
Agree on the leaf condition, ground and required result before the demonstration. For example, the task might be to gather leaves from an agreed area into a specified location. Set the area and acceptance requirements together; do not invent a universal clearance rate for every blower.
Use the tube, nozzle and settings permitted by each machine's instructions, and record them. Do not force the same nozzle onto different machines to claim equal conditions, or narrow or modify the outlet to chase a higher reading. Working distances and methods must remain within each model's permitted use. Record conditions that cannot be matched.
Follow the operation: can the blower move the leaves, how much repeat sweeping is needed, and is it controllable around turns and edges? Then check moving between locations, carrying and replenishing energy. A short video of a loud unloaded machine or a piece of paper blown far away does not answer those questions.
Record the battery and setting, or the petrol model and operating conditions. A brief run at a high setting should not become a full-shift capability claim. For continuous users, trial the equipment against their working rhythm and record why it stops, as well as elapsed running time.
Some cleanup jobs do not belong to a leaf blower
If a customer sends a workshop photograph and asks to blow the floor clean, first establish what the dust is. Moving dust and collecting it are different operations. Dust leaving the floor does not mean it has been safely dealt with.
STIHL's leaf blower safety tips list materials that should not be cleared with a leaf blower, including construction dirt, plaster dust, cement and concrete dust, and large amounts of gravel or gravel dust. Choose a suitable cleaning method for the material and site requirements first. A “jobsite blower” is not permission to handle every kind of construction dust.
Before a demonstration, check the equipment, protection and people nearby. Follow the specific manual for the working area and eye and hearing protection. Stop for damaged parts or abnormal operation. Do not remove guards or alter safety components to make a machine feel more powerful.
For an enquiry, send photographs of the material and ground, the working area and the pattern of use, rather than only a target speed. When sending a landscape-cleanup requirement to FORZMAX, include existing specifications, the air-volume measurement location and the nozzle configuration so the suitability of an actual model can be discussed.
The cover is an AI-generated autumn cleanup concept, not a photograph of a customer site or an equipment test.