The short answer
What an Air Scrubber Does
An air scrubber is a portable machine that draws in air from the room and passes it through a pre-filter, then a HEPA filter, and sometimes a carbon filter. The HEPA filter catches particles as small as mold spores, dust, and pollen. The cleaned air is then released back into the space, lowering the concentration of airborne contaminants.
For mold, the scrubber does not kill mold or remove it from surfaces. It only captures spores that are floating in the air. This is useful during cleanup because disturbing moldy materials can release spores into the air. Running a scrubber helps protect your breathing space while the actual mold removal happens.
- Pre-filter catches larger dust and debris
- HEPA filter traps mold spores and fine particles
- Carbon filter can reduce odors
- Negative air pressure can contain the work area
- Portable units are placed near the work zone
- Filters need regular replacement to stay effective
Negative Air Pressure Explained
Many air scrubbers can be set up to create negative air pressure. This means the machine pulls air out of the room faster than air can get in, so the room stays at a slightly lower pressure than the surrounding areas. As a result, airborne mold spores are less likely to drift into other parts of your home.
To set up negative air pressure, the scrubber is placed inside the affected room, and the exhaust is vented outside through a window or door. Sealing other openings helps maintain the pressure difference. This technique is common during mold remediation to keep spores from spreading.
If you live in Daytona Beach, where humid conditions can encourage mold growth, keeping the air moving during cleanup is especially helpful. However, negative air pressure should only be used when you have a clear path for the exhaust and know how to seal the room properly.
Limitations of Air Scrubbers
An air scrubber is not a standalone solution for mold. It does not address the source of moisture that allowed mold to grow. Without fixing the leak or humidity problem, mold will return even if you run the scrubber for days. The machine is a supplement to thorough cleaning and moisture control.
Air scrubbers also have limits on how much they can filter. If the air is heavily contaminated, filters can clog quickly, reducing effectiveness. Regular filter changes are necessary. Also, the scrubber only cleans the air that passes through it, so it works well in a contained space.
For a serious mold problem, you need to remove the moldy materials and dry the area completely. A scrubber can help keep the air safer during that process, but it cannot replace the physical removal work.
Using an Air Scrubber Safely
When using an air scrubber for mold, place it near the work area but not directly in the path of heavy dust. Keep windows and doors closed to maintain negative pressure if that is your goal. Wear a respirator and gloves while handling moldy materials, and see a doctor if you feel unwell from exposure.
After the mold cleanup is done, run the scrubber for several hours to help clear remaining spores from the air. Then change the filters, since they may be loaded with captured particles. Dispose of used filters in sealed bags to avoid releasing spores back into your home.
If the mold covers a large area or you have health concerns, consider hiring a mold professional. They have the equipment and experience to handle the job safely.
When to Call the Pros
For small patches of mold on hard surfaces, you might handle the cleanup yourself with soap and water, while using an air scrubber to manage airborne spores. But if mold covers more than about ten square feet, or if it is inside walls, ceilings, or HVAC systems, professional help is often the safer route.
The pros use industrial-grade air scrubbers and other equipment to contain and remove mold. They also identify the moisture source and recommend repairs to prevent recurrence. If you suspect mold after water damage, act quickly to dry the area and consider getting an inspection.
Your insurance company may have specific requirements for mold remediation, so check your policy. Policies vary, and your insurer decides what is covered.
- Large or hidden mold growth
- Mold after flooding or sewage backup
- You have asthma, allergies, or a weakened immune system
- Moisture problem keeps coming back
- You need help finding the source of the leak
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Call Now (386) 272-5697Frequently asked questions
Can an air scrubber remove mold from walls?
No. An air scrubber only filters airborne particles. Mold growing on walls must be physically cleaned or removed. The scrubber helps reduce spores in the air while you clean, but it does not kill or remove mold from surfaces.
How long should I run an air scrubber for mold?
Run it during the entire cleanup process and for several hours afterward to clear remaining spores. The exact time depends on the size of the area and the severity of the mold. Change filters after heavy use.
Is an air scrubber the same as a dehumidifier?
No. A dehumidifier removes moisture from the air, while an air scrubber filters particles. For mold, you may need both: a dehumidifier to dry the space and an air scrubber to capture spores.