Size a cordless blower by the debris, not the sticker: high CFM moves big piles of loose leaves, while high MPH breaks wet, matted debris free.
Most lost afternoons trace back to reading the MPH figure, skipping CFM, and coming home with a tool that can’t push a pile. Work through sizing debris type first and spec sheet second, and the decision takes about five minutes.
What Do CFM and MPH Actually Measure?
CFM measures air volume, the amount of air a blower moves each minute; MPH measures air speed, how fast that air leaves the tube. Volume clears loose debris in bulk; speed breaks the grip of wet or packed material.
- CFM (cubic feet per minute) counts air volume. More CFM moves bigger piles of dry leaves and grass clippings per pass.
- MPH (miles per hour) counts air speed. More MPH rips wet leaves, pine straw, and grit loose from gravel, turf, and lawn edges.
Compact cordless models show how far apart the two specs can sit. “Compact” describes the size of the tool, not its output.
Sizing A Cordless Blower: What Decides The Outcome
Debris type decides it. Dry, loose leaves and clippings reward the highest CFM the tool offers, while wet leaves, matted turf, and stuck grit reward higher MPH, because air volume alone just swirls them around.
Yards with both call for a balance, where current flagships land. The EGO POWER+ 765 CFM Blower, model LB7654 lists up to 765 CFM and up to 200 MPH in turbo mode, with a speed dial covering 260 to 580 CFM; EGO ties the peak numbers to the tapered nozzle being attached. The DeWalt 60V MAX High Power Brushless Blower, model DCBL777B, lists up to 760 CFM and 160 MPH and includes a flat nozzle, a concentrator nozzle, and a shoulder strap.
Runtime is the third number buyers skip. A blower rated at 765 CFM drains a compact battery faster than a large pack, so compare run times only against the battery size actually shipping in the box.
Three details in the fine print decide whether the numbers show up in your yard.
- Tool-only listings leave the battery and charger to you. The DeWalt DCBL777B ships that way.
- Peak turbo ratings on the EGO models apply with the tapered nozzle attached.
- These models run on DeWalt’s 60V MAX platform or EGO’s 56V ARC Lithium system, and the batteries don’t swap.
Compact Cordless Blower Specs Compared
Every figure comes from the manufacturer’s product page, and the EGO ratings assume the tapered nozzle is fitted.
| Blower | Listed Air Volume | Listed Air Speed |
|---|---|---|
| DeWalt 60V MAX DCBL777B | Up to 760 CFM | 160 MPH |
| EGO POWER+ LB6703, turbo with tapered nozzle | Up to 670 CFM | Up to 180 MPH |
| EGO POWER+ LB7654, turbo with tapered nozzle | Up to 765 CFM | Up to 200 MPH |
| EGO POWER+ LB7654, speed dial range | 260 to 580 CFM | Not published |
| Compact precision blower class | About 39 CFM | About 570 MPH |
| Compact spot blower class | About 175 CFM | About 110 MPH |
Read the columns together and no compact blower wins both.
Small spaces ask for a lighter tool. For porches, garages, and tight runs, our tested 18v compact jobsite blower roundup lines up the models worth owning.
Decide in one pass:
- Name the debris on your property.
- Pick the column that matches it: CFM for volume, MPH for speed.
- Verify the nozzle and package contents behind the number you’re buying.
- Confirm the battery fits a platform you already use.
FAQs
Should I prioritize CFM or MPH for a small yard?
For a small yard with dry leaves, CFM matters more, because it decides how quickly debris moves into a pile. MPH takes priority only when material is wet, matted, or stuck in gravel and lawn edges. A compact blower with modest CFM and very high MPH will move less material per pass than a mid-volume model.
Do peak blower ratings require a special nozzle?
Sometimes. EGO lists the LB7654 at up to 765 CFM and 200 MPH in turbo mode, and specifies that the tapered nozzle must be attached to reach those numbers. Buy it without checking which nozzle ships in the box, and your real output can land well under the sticker figure.
What does “tool-only” mean on a blower listing?
Tool-only means the blower arrives without a battery or charger. The DeWalt DCBL777B is sold that way, so buyers invested in DeWalt’s 60V MAX platform save money, while first-time buyers must add both items to the cart. Bundled kits cost more up front and usually include a smaller battery.
References & Sources
- EGO Power+. “EGO POWER+ 765 CFM Blower, model LB7654” Supports the 765 CFM and 200 MPH turbo ratings, the 260–580 CFM speed dial, and the tapered-nozzle condition.
- EGO Power+. “EGO POWER+ 670 CFM Blower, model LB6703” Supports the LB6703 rating of up to 670 CFM and 180 MPH with the tapered nozzle attached.
- DeWalt. “60V MAX High Power Brushless Blower, model DCBL777B” Supports the up-to-760 CFM and 160 MPH ratings, the included nozzles and shoulder strap, and the tool-only package.
