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Dustless Technologies

Model # MU405

Internet # 100652642

Cougar Ash Vacuum

This item has been discontinued.
The Home Depot no longer carries this specific product.

Was   $249.95
$149.97 /each

Save $99.98 (40%) through 10/04/2015

Clearance - Limited Quantities While Supplies last
Promotion Details
Price Valid : 08/31/2015 - 10/04/2015
Clearance - Limited Quantities While Supplies last




Model # MU405

Internet # 100652642

The Cougar Ash Vacuum comes from the leader in Ash Vacuum technology Loveless Ash and Dustless Technologies. The patented design gives you the safest, most secure way of cleaning ashes out of fireplaces, pellet stoves, grills or any device that creates ash. Its all-metal construction and fire resistant filters make the Cougar Ash Vacuum the right tool for a very important job. What good is an ash vacuum if it spews ash particles into the air whenever you flip the on switch? Unlike other ash vacuums, the Cougar has a proprietary coating on its primary filter that captures extremely fine particles to keep the ash inside the canister. It does not cough out dust when first turned on. You can also clean the primary filter without opening the canister by jiggling the agitator rod located on the top of the lid. Another innovative feature that helps keep the ash inside the canister so your home stays clean and ash free.

California residents: see  Proposition 65 information

  • Patented heat / fire-resistant filters
  • A proprietary coating on the primary filter captures the extremely fine particles to keep ash inside the canister so it does not cough out dust when it’s first turned on
  • Flexible, flame resistant 5 ft. hose
  • 3 Gal. capacity canister is made from cold-rolled steel
  • Powerful 6-Amp electric motor
  • Works with the following tools and accessories: model # 4P22 ash vacuum cleaning tool package, 3 pieces. Includes brush tool, pellet stove hose, crevice tool. In case the need for replacement filters, use Dustless Technologies replacement primary and secondary filter package, model # 2F22
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Assembled Depth (in.) 
20 in 
Assembled Height (in.) 
19 in 
Assembled Width (in.) 
19 in 
Hose Diameter (In.) 
1 in 
Hose Length (ft.) 
5 ft 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
19 in 
Amperage (amps) 
Assembly Required 
Bag Change/Receptacle Full Indicator 
Built-In Accessory Storage 
Capacity (gallons) 
Carpet Height Adjustments 
Color Family 
Cord Length (ft.) 
Edge Cleaner 
Filter Type 
Number of Attachments 
Number of Filters 
Product Weight (lb.) 
16 lb 
Retractable Cord 
Surface Type 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
ETL Listed 
Manufacturer Warranty 
3 year 


Rated 4.1 out of 5 by 9 reviewers.
Rated 5.0 out of 5.0 by Great ash vac... We've had this ash vac for a year now and have had no problems at all with it. Works great, has really good suction and is easy to empty. Pretty much maintenance free. One person complained that the hose does if you suction up pellets....which it tells you not to do! You can't go wrong with this ash vacuum!! February 5, 2012
Rated 5.0 out of 5.0 by Does what others wont PROS: It does the job its intended for, to vac ash and smalls partials. We use ours for our pellet stove. No dust, easy to assemble, quitter then a shop vac and some Home Vacuums! CONS: I'd like to have seen a holder for the hose, thats it! Final thoughts: So far, we've used it 5 times, with no need to empty it yet. You can't go wrong with this unit and I've not had one problem at all with it. December 11, 2010
Rated 5.0 out of 5.0 by Cougar Ash Vacuum Love it. Makes cleaning the stove a breeze. No more mess. Well worth it. January 11, 2010
Rated 5.0 out of 5.0 by Cougar ash vac This vac is well worth the money ! I use this vac once or twice a day while pellet stove is going,just dial back the pellet feed and let the flames go down then start vacuuming out the hot ash(no red or really hot ambers)but it handles really hot ash just fine and you won't see any ash or dust belching out the exhaust from this vac either. With good pellets I have been able to run the stove 3 weeks straight without shutting down to vac the stove out. Yes its expensive , but its worth every penny . April 10, 2012
Rated 5.0 out of 5.0 by Five stars I am very pleased with the Cougar ash vac that I purchased from Home Depot on their Shop on line web site , the vacuum is a good quality vac and does an excellent job cleaning our pellet stove it has an excellent filter system that keeps the room clean , I would recommend it to any one looking to buy a dust vacuum for their pellet or wood stove.for a great deal and quick delivery buy one from Home Depot's shop on line December 23, 2014
Rated 1.0 out of 5.0 by Overpriced...overrated. Not sure why all the glowing reviews of this ash vac. It has obvious design flaws...the hose port is plastic and prone to warpage/burn-thru (it happened to me within the first week), as well as it being mounted so low on the carrying can you can really only accumulate a few inches of ash before the suction stops altogether and needs emptied. It's equipped with a metal hose, yet all 'ash' travels through a plastic port attached to a metal can. Why not make the port metal/aluminum/brass/stainless as well?? Also, the hose continually falls off despite the barbs that should keep it in place. I put tape around it to secure it because it became such a nuisance. The only positive is it does contain the dust that would otherwise circulate throughout the house. Loveless CS is quick to respond and accommodating to questions/problems, but this ash vac warrants no accolades. I purchased based solely on the positive reviews and wanted a dustless vacuum for my fireplace insert. Bottom line: other models can be had for the half the price without the inherit design setbacks. And, if this is their 'quiet' model...more engineering needs put into place. The decibel level is way too high even compared to a conventional shop-vac. January 2, 2013
Rated 5.0 out of 5.0 by glad I bought it! what a difference from the "other" vaccuum I was using. No more poofs of dust when starting and running this vaccuum! January 19, 2013
Rated 1.0 out of 5.0 by After using this vac several times to clean my pellet stove I am very dissatisfied, the reason being the hose continuosly clogs. I spend more time uncloging the hose than cleaning the pellet stove manually. I plan on returning it for a full refund. Ben January 22, 2011
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