Some messes require additional level of care. When it comes to assuring your commercial space is the safest and hygienic it can be, decontamination services may be a requirement for your space after a one-time event, or as part of regular cleaning maintenance.

Whether it's medical facilities, industrial areas, or research settings, decontamination cannot be compromised for both your customers and your workers interacting in the space every day.

Chlorine Dioxide Solutions

Various methods and practices exist in the decontamination business to clean and sterilize facilities. Smith Restoration & Waterproofing conducts our decontamination services using technology based of primarily chlorine dioxide solution. Use of chlorine dioxide in its gaseous form can reach all corners of the room as it dissipates, resulting in even cracks and corners receiving high levels of decontamination-- something not always achieved with simple wipe-down or vapor-based deep cleanings alone. Additionally, the gas can get on, underneath, or between all surfaces, so no small section is overlooked.

Benefits of chlorine dioxide gas include an overall ease of use for our technicians, reduced costs, and the quicker use of a technique that is unaffected by outside factors. For most spaces, the decontamination process can be completed on the day in a matter of hours. Chlorine dioxide is a non-carcinogenic, EPA-certified sterilant that is effective against viral and bacterial growths and germs.

Since it is a colored gas, chlorine dioxide can be monitored effectively both visually and through measuring instruments, ensuring the process is controlled by our experienced decontamination professionals.

Safety of Chlorine Dioxide Gas


The safest component of gaseous chlorine dioxide decontamination is that it removes a person from the process. Removing a person from the active decontamination process avoids potential safety hazards, and lets us carefully monitor the progress. 

In a gaseous form, it fills the volume of the space it is in and provides complete coverage evenly throughout the room. It is also is unaffected by weather or temperature conditions like heat or condensation. Plus, the solution is safe to use on properly-coated materials and won't leave residue marks after treatment.

The Decontamination Process 

Before Decontamination

The space's HVAC system must be properly functioning to make sure the gas can be exhausted out of the space. All the electrical outlets and switches must be covered to ensure chlorine dioxide gas does not escape, as well as ductwork and any other external-facing vents. 

Moisture is required to process the gas within the decontaminated space, so humidity is increased to introduce the gas in its correct concentration. Fans, humidifiers, or nebulizers may also help distribute the gas throughout the room. After the space is fully prepared for decontamination and the correct measuring instruments are set up, the room is then sealed.

During Decontamination

The gas is let into the space for a predetermined amount of time to effectively clean the space. This is referred to as the "charge" phase, where the chlorine dioxide is let out to reach its set concentration. The gas's concentration is monitored throughout its exposure to the space, and may be adjusted accordingly throughout decontamination.

The decontamination process ends by removing the chlorine dioxide solution with aeration, or flushing the room with clean filtered air. Additional supplemental methods may be used to assist in the decontamination process, such as manual wiping methods to get a physical touch to the cleaning process after the chlorine dioxide gas has been applied.


We offer decontamination services to spaces in a variety of industries, including:

  • Medical: hospitals, healthcare facilities, patient care rooms
  • Pharmaceutical: laboratories, research facilities
  • Construction: condemned areas, new construction spaces, remodeling 

In Need of Decontamination Services?

Please contact Smith Restoration & Waterproofing to schedule your decontamination service, or if you have any additional questions about our services.