An air scrubber is a portable filtration machine that pulls smoke-contaminated air through a pre-filter, a HEPA filter and an activated-carbon filter, then returns clean air to the room. In smoke damage restoration it removes the soot particles and odor compounds that cleaning alone cannot reach, protects the people in the building, and keeps soot from resettling on surfaces that have already been cleaned. Mr. Restore runs air scrubbers on every fire and smoke loss in Dallas–Fort Worth, Amarillo and Oklahoma City.
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Air scrubbers in 30 seconds
- What they do: filter airborne soot, ash and odor compounds out of the air in a closed room, continuously, while cleanup is under way.
- What they capture: HEPA filters trap 99.97% of particles at 0.3 microns. Smoke particles are typically smaller than 1 micron, far below what a furnace filter or a household air purifier removes.
- Odor: activated-carbon filters absorb the volatile organic compounds (VOCs) that make a burned building smell burned.
- Negative air: the same machine, ducted outside, keeps a contaminated area at lower pressure so soot does not migrate into clean rooms.
- What they do not do: remove soot from walls, contents or ductwork. Air scrubbers are one step in a full smoke damage restoration.
Why Smoke Damage Is Never Just a Surface Problem
When a fire is put out, the visible damage is only part of the loss. Smoke particles are extremely small, often under one micron, and they travel with heat and air currents to rooms far from the fire. Those particles embed in porous materials such as drywall, carpet, upholstery and insulation, and they carry acids that keep corroding metal, discoloring plastics and etching glass for days. Breathing them irritates the lungs and is a real risk for children, older adults and anyone with asthma. Wiping down surfaces or spraying air freshener does not address any of that.
- Embedded soot: walls, carpet and fabric absorb particles that release odor for months if they are not removed.
- Respiratory exposure: soot and combustion gases remain airborne for days after the fire.
- Ongoing corrosion: acidic soot keeps damaging appliances, electronics, metal fixtures and finishes until it is cleaned off.
How an Air Scrubber Works: Three Stages of Filtration
- Pre-filter. Catches larger ash, dust and debris so the HEPA filter does not clog in the first hour.
- HEPA filter. Captures 99.97% of particles at 0.3 microns, including the soot and smoke particles you cannot see.
- Activated-carbon filter. Adsorbs smoke odor and volatile organic compounds so the air leaving the machine is clean and neutral, not just particle-free.
A commercial unit moves 500 to 2,000 cubic feet of air per minute. Crews size and place enough machines to turn over the air in the affected rooms several times per hour, and they run continuously until the building passes a final check.
What Air Scrubbers Do During Smoke Damage Cleanup
Remove harmful particles
Soot, ash and combustion residue stay suspended for days. Scrubbing the air makes the building safe for crews and occupants while cleaning continues.
Reduce odor at the source
Carbon filtration removes odor compounds from the air rather than masking them. It works alongside thermal fogging, hydroxyl or ozone treatment and sealing of porous surfaces.
Prevent secondary damage
Every particle pulled out of the air is one that does not settle on a freshly cleaned wall, a countertop or the electronics that survived the fire.
Contain the affected area
Ducted outside as a negative air machine, the scrubber keeps the fire room at lower pressure than the rest of the building, so soot does not spread during demolition and cleaning.
Protect the rebuild
Sanding, priming and painting stir up dust and add new VOCs. Scrubbers run through reconstruction so the finished rooms stay clean and odor-free.
Support the clearance check
Air scrubbing is what brings a building to the point where a final inspection confirms the odor is gone, not covered.
Where Air Scrubbers Fit in a Full Smoke Restoration
Air scrubbers are step one, not the whole job. A complete smoke damage restoration also includes soot removal from every surface with the right method for the soot type (dry, wet, protein or fuel-oil), cleaning of the HVAC system and ductwork that spread the smoke, pack-out and cleaning of contents, odor treatment inside wall cavities and attics, and sealing or replacement of materials that cannot be cleaned. Mr. Restore handles all of it with one crew, documents the loss for your insurance carrier and bills the carrier directly. Details are on our smoke damage restoration page and our fire damage restoration page.
Why Household Cleaning and Air Fresheners Fall Short
- Air fresheners and candles add a scent on top of the smoke odor. The particles causing the odor stay in the walls and fabric.
- Consumer air purifiers are sized for a bedroom and pollen, not a house full of sub-micron soot. Most do not carry true HEPA filtration or carbon in useful quantity.
- Wiping with household cleaners smears soot deeper into paint and drywall paper. Dry soot needs dry-cleaning sponges first; wet soot needs degreasing agents.
- Opening windows helps briefly but brings in humidity that sets soot into surfaces and does nothing for the particles already embedded.
Choosing a Smoke Damage Restoration Company
- Certification. Look for IICRC Fire and Smoke Restoration Technician (FSRT) training. Mr. Restore crews hold FSRT along with WRT and ASD water certifications.
- Equipment. Ask whether they run HEPA air scrubbers and negative air containment from the first day, and how they treat odor inside wall cavities.
- Full service. Cleanup, contents, odor and rebuild from one company means one schedule and one point of contact for your adjuster. See what a full-service restoration company does.
- Insurance experience. Fire losses are documented in Xactimate and billed to the carrier directly, so you pay your deductible and not the whole bill up front.
What Customers Say After a Fire
Verbatim excerpts from public Google reviews of Mr. Restore offices. Names and dates as shown on Google.
“We worked with Wes Bock and his team after a small fire in our warehouse. They were incredibly professional, and went beyond the extra mile in helping us sort everything out.”
Tim Girgis · Google review · September 2019
“Top notch customer service! Mr Restore responded quickly and helped me with my emergency needs. The employees were very respectful & attentive to the job at task! Highly recommend for them for fire, water, & storm restoration and emergency needs!”
Douglas Campbell · Google review, Dallas office · April 2024
Air Scrubber FAQ
What does an air scrubber do in smoke damage restoration?
It pulls smoke-filled air through a pre-filter, a HEPA filter and an activated-carbon filter and returns clean air to the room. That removes airborne soot and odor compounds, protects occupants and crews, and keeps soot from resettling on surfaces that have been cleaned. It runs continuously while the rest of the restoration is done.
How long do air scrubbers need to run after a fire?
From the first day of cleanup until the building passes a final odor and air-quality check, which is typically several days to two weeks depending on the size of the fire. They also run during reconstruction so sanding and painting do not recontaminate finished rooms.
Can an air scrubber remove smoke smell by itself?
No. It removes odor compounds that are in the air, which is a large part of the smell, but odor embedded in drywall, insulation, fabric and ductwork has to be cleaned, treated with thermal fogging or hydroxyl or ozone, and sealed or replaced. Air scrubbing is one step of a complete smoke damage restoration.
Is a HEPA air scrubber the same as a home air purifier?
No. A restoration air scrubber moves 500 to 2,000 cubic feet of air per minute through true HEPA and carbon filtration and can be ducted for negative-pressure containment. Consumer purifiers are sized for one bedroom and everyday dust, not sub-micron soot throughout a house.
What is negative air pressure and why does it matter after a fire?
When an air scrubber is ducted to exhaust outside, it lowers the air pressure in the fire-damaged area. Air then flows into that area from clean rooms, never out of it, so soot stirred up by demolition and cleaning stays contained.
Does Mr. Restore use air scrubbers on every smoke job?
Yes. HEPA air scrubbers and containment go up on the first visit for every fire and smoke loss we handle in Dallas–Fort Worth, Amarillo and the Texas Panhandle, and the Oklahoma City metro. Call (877) 631-7576, answered live 24/7.
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Smoke damage restoration Fire damage restoration Commercial fire damage restoration Contents restoration & pack-out What a full-service restoration company does Fire & water restoration in Dallas
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