Our in-line spark arrestor, The Quencher, is engineered to channel hot embers and sparks into a high energy turbulation cell, extinguishing and keeping them away from the filters in the dust collector, thus reducing the risk of a fire or explosion. Our spark arrestor cools the sparks and embers that cause fires and explosions in dust collection systems. It's not just a spark trap! Low-pressure, high efficiency spark arrestors like The Quencher,  can be mounted in-line with the existing or new duct work and are available in either a horizontal or vertical setup, providing the versatility to fit into any installation.

Features at a glance

  • Most advanced spark suppressor technology available on the market today. Manufacturing Quencher Spark Arrestors from 2" to 144" and larger, with capabilities in excess of 250,000 CFM.
  • Extinguishes and cools sparks / burning embers from welding fumes, plasma cutting table, grinding, polishing, buffing, belt sanders, furnaces, biomass boilers, and any application which creates a possible spark hazard.
  • Prevents fires and explosions in all dust collection and ducted systems.
  • Static device, with no moving parts, requiring no additional dust collection recipient. No water or chemical retardants are injected.
  • In-line spark arrestor device, is easy to apply, install, use and maintain.
  • A small investment for safety and big piece of mind.
  • NEW! Mini-Quencher for 2" to 4" vacuum lines is now available.
  • High temperature units up to 2000 degrees Fahrenheit.
  • Stainless steel, corrosion and abrasion resistant options are available.
  • Sleeve/slip connection and rolled edge (for clamp together duct).
  • Built to ISO 9001:2008 and CWB Certification, Your Guarantee of Quality and Reliability.

Get a FREE, no-obligation quote for THE QUENCHER

Watch The QUENCHER video

Why you should buy from Quality Air Management

Why buy from us?

Purchasing the Quencher Spark Arrestor, you can be confident you are entrusting the safety of your operation with the engineering know how of a company which specializes and protected spark arresting technology.

Having lead the evolution of the industry over the past 15 years, Quencher has the experience to ask the right questions and the acumen to look for the potential dangers that exist in all spark generating applications and will provide a solution based on your potentially hazardous environment.

Only Quencher has the engineering capability and personnel to do this and provide complete comprehensive documentation to go with the product, its installation, operation and application.

  • Our baghouse collectors forms a highly efficient filter cake, allowing operation at up to 18:1 filter (air-to-cloth) ratio compared to conventional designs operating a 4-8:1 ratio
  • No dust penetration (puffing) during cleaning pulses means absolutely clean air returned, allowing re-circulation to the work area without after filters
  • The high side inlet acts as a dropout chamber to absorb heavy, abrasive and impulsive dust loading
  • Supersonic nozzles on the pulse pipes produce 3.6 times more cleaning energy for every pulse jet; therefore 1/3 the cleaning frequency and 65% less compressed air consumption
  • Only 25% of filters sent to landfill; uses half of the filter elements with at least 2-3 times longer filter life, compared to conventional designs

Spark Arrestor Cell Cleaner

Quencher Spark Arrestor (with optional Cell Cleaner)

Still need more convincing?

The Quencher is self-cleaning and prevents pressure build up. Quencher uses no hazardous drop out provision. Quencher is heavy duty construction for long life in industrial settings, unlike other spark arrestors  ductwork grade construction.

Quality Air has installed over 2,200 Quenchers in every industrial application imaginable worldwide during the past 15 years.  Collectively, these units are handling billions of cubic feet of air and extinguishing tens of millions of sparks per minute, each and every day, hazard free:

  • Easy to service: top load filter bags, without being exposed to dusty filter compartment
  • Built to ISO 9001:2008 and CWB Certification
  • 25-45% lower power consumption and compressed air usage
  • 50-80% lower maintenance and operating cost
  • 3-5 times longer filter life, 1/2 the number of filters and cleaning hardware

How the Quencher spark arrestor works

Laminar flow in ducts; (1) creates a hot air envelop (800oF) around the spark/ember (14000F) and feeds oxygen to the spark, (2) the spark is buoyed up and floats along in the gas stream for 100 feet or more.
The QUENCHER spark arrestor creates extreme turbulence and breaks apart the envelop, strips the oxygen (fuel) away from the burning spark, extinguishing and cooling it. The temperature of the spark, leaving the QUENCHER, is now too low to cause an ignition and fire. The cooled sparks are safely carried along the gas stream to the dust collector.

Sparkarrestor Function

CAUTION: Air mixing or blender devices, being marketed as spark suppressors and spark coolers, do not create enough turbulence and have large gaps in the cells, permitting sparks to slip through and set fire to the dust collector.

Before Quencher


Outlet Quencher

Quencher Models Available

Mini Quencher Web

Mini Quencher works great in smaller locations.

Model Typical Duct Diameter (inches) Operating Range (SCFM)
Q-2, Mini-Quencher 2 100-150
Q-4, Mini-Quencher 4 300-500
Q008 6 490-820
Q010 8 790-1310
Q012 10 1100-1840
Q016 12 1800-3000
Q020 14 2980-4960
Q024 16 4420-7360
Q030 22 7070-11,800
Q038 28 11,300-18,800
Q048 36 18,300-30,600
Q060 44 28,900-48,200
Q072 54 41,600-69,300
Q096 72 74,200-123,700
Q108 80 94,200-157,100

Purchase our Cell Cleaner & Booster Add-on

OSHA & NFPA friendly; It is important for the Quencher cell & blades be kept free of combustible dust. Accumulations from heavy dust loading could cause a fire and void the warranty. To help reduce the issues associated with dust accumulations, an optional CELL CLEANER / BOOSTER device can be installed in front of the Quencher. This device can be actuated manually or automatically. Visit The Booster Duct Cleaner page for more information.

The Cell Cleaner is an add-on option that is shown toward the end of the video.

All Quality Air Management products are manufactured to the highest standards:



About Us

QAM strives to be the leading provider of the most innovative advanced technology products for the dust collection industry. We take pride in achieving a comfortable and safe work place for our clients. We want them to rely on us for all their needs, at the best value for their dust collection dollar. Provide the personal touch to solve a client’s exact needs and customize solutions, and, take the complexity and fear out of dust collection.

Learn more about Quality Air Management