How to Effectively Use an Air Scrubber

Using an air scrubber effectively for water damage restoration is key to controlling indoor air quality and preventing further damage like mold growth.

 

What is an Air Scrubber?

An air scrubber is a portable air filtration system that removes airborne contaminants like mold spores, bacteria, dust, and odors. It uses HEPA filters and sometimes carbon filters to clean the air.

 

How to Use an Air Scrubber Effectively for Water Damage Restoration

1. Choose the Right Unit

HEPA Air Scrubber: Must capture 99.97% of particles ≥0.3 microns.

CFM Rating: Make sure the unit has adequate airflow (measured in CFM) for the size of the affected area.

Rule of thumb: Aim for 6 air changes per hour.

Preair provides high-quality air scrubbers for sale. If you need other restoration equipment, Preair also has dehumidifiers and air movers in stock. Please get in touch with us as soon as possible. 

 

2. Seal the Area

Close off the damaged area with plastic sheeting or containment barriers.

This creates a negative pressure environment if desired (see next step).

 

3. Set Up for Negative Air Pressure

Attach ducting to the exhaust and run it outside a window or vent.

This setup pulls contaminated air out of the room, helping contain mold spores and bacteria.

 

4. Position the Air Scrubber Properly

Place it centrally or near the source of water damage.

Avoid placing it near walls or blockages to ensure good airflow.

Keep the intake side clear of obstructions.

 

5. Run Continuously During Restoration

Let the air scrubber run 24/7 throughout drying and demolition.

Do not shut it off at night—contaminants may resettle.

 

6. Replace Filters as Needed

HEPA filters need changing after 800–1000 hours of use (or sooner if visibly dirty).

Pre-filters should be checked and changed more frequently (daily or every few days).

 

7. Monitor Air Quality

Use a particle counter or humidity sensor to track progress.

If odors or visible particles persist, keep running the unit or add more scrubbers.

 

8. Post-Remediation Testing

In mold remediation jobs, consider third-party clearance testing after running scrubbers for 24–48 hours post-cleanup.

 

Bonus Tips:

Combine with LGR dehumidifiers and industrial air movers to address moisture and circulate air.

Label units with filter change dates and usage hours.

Use multiple scrubbers for large or multi-room spaces.