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Excellent4.8 (247)Trustpilot

Clean Driveway. One Hand. Three Pounds.

Cosari AeroJet 21V

A 150 MPH brushless air blade in a 3.4-lb body.

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  • 150 MPH / 420 CFM brushless turbo motor
  • 3.4 lbs ultra-light with 21V battery included
  • Extended no-stoop tapered concentrator tube
  • 68 dBA quiet, HOA-friendly operation
Cosari AeroJet 21V
Free Tracked Shippingin 5 to 7 business days
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Big-Blower Results Without the Big-Blower Weight

Engineered for the 2-to-10-minute jobs you actually do every week.

150 MPH Brushless Turbo

A 32,000 RPM brushless motor pushes 420 CFM through a precision nozzle. It's strong enough to clear wet leaves stuck to rough concrete.

3.4-Lb One-Hand Balance

Weighs 3.4 lbs with the battery installed. The low-mounted pack counterbalances the nozzle, so there's no forearm twist.

Tapered Air-Blade Nozzle

The tube narrows to a 58mm tip, focusing airflow into a tight blade that slides under debris instead of puffing over it.

21V Slide-In Power

Runs 18 to 22 minutes on full Turbo or up to 42 at sweep speed. The pack slides on and clicks in one motion.

How the AeroJet Clears More With Less

High-Volume Brushless Intake

High-Volume Brushless Intake

Chamfered rear louvers feed a 32,000 RPM brushless motor with smooth, steady airflow. You get no carbon brushes, no burning smell, and no hairdryer whine.

Concentrated 150 MPH Air Blade

Concentrated 150 MPH Air Blade

The tapered nozzle compresses that air into a narrow, fast stream that gets under wet leaves and clippings and lifts them off textured pavement.

Throttle-Style Trigger Control

Throttle-Style Trigger Control

Feather the variable trigger for mulch beds and garage corners, then squeeze to full Turbo on open concrete. The base battery keeps the unit level in your hand.

Cosari AeroJet 21V hero
Excellent4.8 (247)Trustpilot

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Cosari AeroJet 21V

Cordless Brushless Leaf & Snow Blower · 21V Battery & Charger Included

Backed by our 30-Day Money-Back Trial & Full 2-Year Cosari Warranty.

$89.99 $179.99 Free Tracked Shipping (5–7 Days) Included

In Stock: Delivers in 5–7 Business Days. Free insured US delivery with tracking.

30-Day Money-Back Guarantee plus a full 2-Year Warranty.

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Description

Product Details: The Cosari AeroJet 21V is a cordless brushless leaf and snow blower with a matte-black and slate-grey glass-reinforced housing, extended tapered concentrator nozzle, rubberized pistol grip, and variable-speed trigger. It weighs 3.4 lbs with the battery installed and produces 150 MPH peak air velocity and 420 CFM.

Battery & Runtime: Powered by a 21V 4.0Ah lithium-ion slide-in pack. Expect 18 to 22 minutes on full Turbo and up to 42 minutes at variable sweep speed. The pack shows charge level on built-in LEDs and slides onto the base rail until it clicks.

Shipping, Returns & Warranty: Free tracked shipping on every order. Try it for 30 days, and if it doesn't earn a spot by your garage door, return it for a full refund with no restocking fee. The brushless motor and battery are covered by a 2-year replacement warranty.

5–7 Day Shipping & 30-Day Returns

Free 5–7 Day US Shipping: Every order ships free with full tracking and delivers in 5 to 7 business days.

30-Day Trial: Try it at home for 30 days risk-free. Need help? Email us anytime at support@buycosari.com.

2-Year Warranty: If anything goes wrong within 2 years, we replace it free of charge or refund your order in full.

Why Choose the Cosari AeroJet 21V?

Cosari AeroJet 21V Detail

Brushless, Not Brushed

No carbon brushes to spark, wear down, or smell like ozone. It runs cooler and more efficiently than budget brushed motors.

Stand Tall While You Work

A 31.5-inch overall reach keeps the nozzle near the ground while your arm hangs naturally. No hunching over.

One Tool, Four Seasons

Fall leaves, summer clippings, washed-car drying, and winter powder snow. It earns its hook all year.

Cosari AeroJet 21V vs. Ordinary Alternatives

Cosari AeroJet 21VStandard Competitors

FeatureCosari AeroJet 21VStandard Competitors
Weight with battery3.4 lbs7 to 10 lbs
Battery & chargerIncludedOften sold separately
Motor typeBrushless, 32,000 RPMBrushed on budget models
Noise at 15 ft68 dBAUp to 94 dB on cheap units
Kit price$89.99$149 to $279
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What's Included

In the Box
  • 1 × Cosari AeroJet 21V blower body
  • 1 × Extended tapered concentrator nozzle tube
  • 1 × 21V 4.0Ah lithium-ion slide-in battery pack
  • 1 × Wall charger
Technical Specifications
  • Peak Air Velocity: 150 MPH
  • Air Volume: 420 CFM
  • Motor: Brushless, 32,000 RPM
  • Operating Weight: 3.4 lbs (1.54 kg) with battery
  • Overall Reach: 31.5 inches
  • Noise Level: 68 dBA at 15 ft
  • Battery: 21V 4.0Ah lithium-ion slide-in pack
  • Runtime: 18–22 min Turbo / up to 42 min variable
Care & Safety
  • Charge the battery indoors at room temperature and store it off the tool during long breaks. For winter storage, leave it at about half charge.
  • Wipe the intake louvers clear of leaf debris and dust after heavy use, and keep the nozzle locked on between jobs to protect the bayonet collar.
  • Backed by our 30-Day Money-Back Guarantee & 2-Year Warranty
  • Customer Support: support@buycosari.com
In the Box Cosari AeroJet 21V

Ready in Two Clicks

Swipe left for steps 2 and 3

  1. Lock the Nozzle
    1

    Lock the Nozzle

    Twist the tapered tube onto the front collar until it locks. Do it once and leave it on.

  2. Slide In the Battery
    2

    Slide In the Battery

    Push the charged 21V pack onto the base rail until it clicks. The LEDs show your charge.

  3. Squeeze and Sweep
    3

    Squeeze and Sweep

    Stand tall, feather the trigger, and watch the driveway clear in one pass.

Verified Customer Reviews

What 200+ Verified Buyers Say About the Cosari AeroJet 21V

Excellent Trustpilot
4.8
Based on 247 verified reviews
5 Stars
212
4 Stars
25
3 Stars
7
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1 Star
1
97% of buyers recommend the Cosari AeroJet 21V
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✓ Verified Purchase
Greg M.3 days ago

Retired my heavy 56V monster for 95% of weekly cleanups

I bought a big 56V cordless blower two falls ago and honestly dreaded picking it up because my forearm and wrist would ache after ten minutes. This 3.4-pound Cosari hangs right inside my garage door and gets used four times a week. The tapered concentrator tube acts like an air scraper under damp oak leaves on our concrete apron instead of just puffing wide air over top of them.

Verified Purchase · Westerville, OH · Cosari AeroJet 21V

Customer photo
✓ Verified Purchase
Darren K.5 days ago

Solid rubberized grip and serious brushless punch

Left it sitting on my workbench after blowing out three bays of sawdust, pine needles, and grass clippings in under two minutes. At 50% off with the 21V battery and charger included, the build quality genuinely surprised me—dense matte housing, comfortable rubberized pistol grip, and the battery slides in with a crisp click. Easily the best 'garage broom' I've ever owned.

Verified Purchase · Naperville, IL · Cosari AeroJet 21V

✓ Verified Purchase
Linda S.1 week ago

My 68-year-old shoulders can clear the entire wrap-around deck

I couldn't even lift my son-in-law's gas blower off the shelf, and dragging a 100-foot orange extension cord around patio furniture was a tripping hazard. With the Cosari I walked our entire wrap-around cedar deck, front steps, and stone walkway one-handed with zero strain—and still had two battery bars left.

Verified Purchase · Asheville, NC · Cosari AeroJet 21V

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Marcus T.1 week ago

Cleared powdery snow off two SUVs at 6:30 AM in 45 seconds

Total game changer on cold mornings: walked out to the driveway in my coat and blew two inches of dry powder snow right off my wife's windshield, roof rack, and hood without ever touching the paint with a stiff bristle brush. Works just as well for touchless car drying after a wash—gets every drop out of side mirrors and lug nuts with zero towel swirls.

Verified Purchase · Grand Rapids, MI · Cosari AeroJet 21V

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Brian H.2 weeks ago

Variable trigger actually works like a real throttle

Most compact blowers are basically an all-or-nothing switch that blasts pine bark everywhere. This trigger feathers smoothly, so I can ease back to half speed to float dry leaves out of our flower and mulch beds without launching bark chips across the lawn, then squeeze full throttle once they hit the driveway.

Verified Purchase · Raleigh, NC · Cosari AeroJet 21V

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kevin P.2 weeks ago

Long nozzle means no hunching over at 6'1"

What sold me is the extended concentrator tube. I'm 6'1" and with shorter shop blowers you have to stoop over to get a shallow angle on pavement. With this tube snapped in, my arm hangs naturally at my side and the nozzle points right under wet pine needles while I walk completely upright.

Verified Purchase · Spokane, WA · Cosari AeroJet 21V

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Teresa W.3 weeks ago

Low airflow whoosh instead of that awful dentist-drill whine

My neighbor's cordless blower has a high-pitched screech that wakes the whole cul-de-sac on Saturday mornings. The brushless motor in the AeroJet makes a much deeper, cleaner air whoosh. I can sweep off our back patio and pool deck at 7:30 AM with my coffee in the other hand without bothering anyone.

Verified Purchase · Lexington, KY · Cosari AeroJet 21V

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Paul R.3 weeks ago

Ideal for patios, driveways, and weekly turf touch-ups

If you have two acres of knee-deep autumn maple leaves over tall fescue grass, keep your backpack unit for November. For literally every other day of the year—sweeping grass clippings off sidewalks after edging, clearing gutters from the ladder, and keeping a two-car driveway spotless—this beats lugging out heavy gear every single time.

Verified Purchase · lancaster, PA · Cosari AeroJet 21V

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Stephan D.1 month ago

No more cord rodeo for a two-minute porch sweep

I used to spend ten minutes untangling and rewinding an extension cord just to blow desert dust and palo verde blossoms off our travertine Courtyard. Now it takes ninety seconds start to finish. Battery charges fast and holds its charge sitting in the laundry room closet for weeks.

Verified Purchase · Scottsdale, AZ · Cosari AeroJet 21V

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Hannah C.1 month ago

Bought a second one for our lake cabin

After seeing how fast my husband cleared wet birch leaves and acorns off the stone steps, we ordered a second Cosari while the 50% off deal was still live to leave up at our cabin. Weighs next to nothing, clicks apart in two seconds to fit in a trunk bin, and pushes way harder than anything this light has a right to.

Verified Purchase · nh, Nashua · Cosari AeroJet 21V

Your Clean Driveway Is Two Clicks Away

$89.99 $179.99 Free Tracked Shipping (5–7 Days) Included

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Frequently Asked Questions

Does the $89.99 price include the battery and charger?

Yes. The 21V lithium-ion slide-in battery and the wall charger are both in the box. This is not a tool-only listing.

How much does it weigh with the battery attached?

3.4 lbs (1.54 kg) with the battery installed, which is light enough for one-handed use by nearly anyone in the household.

How long does the battery last?

In our testing, one 21V 4.0Ah pack ran 18 to 22 minutes on full Turbo and up to about 42 minutes at variable sweep speed. We saw zero thermal shutdowns.

Will I have to bend over to use it?

No. The extended tapered nozzle gives a 31.5-inch overall reach, so a 6-foot adult can work fully upright with the tip a few inches off the ground.

Can it move wet leaves and snow?

Yes. The 150 MPH concentrated air stream lifted soaked oak leaves off textured concrete and cleared up to about 3 inches of dry powder snow. It isn't designed for heavy, wet snow.

Can I get a spare battery?

Yes. Spare 21V slide-in packs can be added at checkout, so larger properties can swap packs and keep working.

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