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Mold RemediationMold and MycotoxinsIndoor Air Quality

Sponsored Content

Don't Get Lost in the Fog: Mold Remediation & IAQ Innovations

By Bret Sallee, Robert Goldsworthy
A professional businessman thinking while standing on a black arrow pointing forward

Photo: ra2studio / iStock via Getty Images Plus

October 25, 2018
Last updated on February 18, 2025


As a mold remediation or indoor air quality specialist, there exists a huge array of products that we have available to us. With so many on the market, what do we need to know about these products in order to perform our function in a professional, effective, and most importantly, safe manner?

Content Provided by GoldmorrEach product may have different dilution rates for each distinctive mold, bacteria, and/or biological contaminant that they may be targeting. There may also be different dwell times for each contaminant you are attempting to remove. Without specific training for each product, blindly applying them to the building atmosphere is a recipe for disaster.

Another problem, with serious consequences, is the practice of fogging into the air mold remediation chemicals that were not designed, formulated, or tested for this type of application. Take the use of hydrogen peroxide. Fogging hydrogen peroxide can pose a variety of serious problems such as corrosion, discoloration to soft furnishings, and health risks. These risks can not only affect the applicator of the product, but also the occupants of the building upon return to the environment. So, if you are currently fogging a chemical agent into the air, does your product label specifically state it is designed for that use?

Many products that are EPA registered achieve their registration under the Pesticide Act; and countless of these are not recommended for fogging indoors. If you are using an EPA-registered product in a fogger, this may be in direct contravention of the law and can be very dangerous for your customer. You will also be required to have a pesticide application license to apply any product that is registered under the Pesticide Act.

As a professional remediator, it is your responsibility to ensure that your company operates within the law. You may receive a sample product from a well-meaning vendor, or purchase a product that is readily available over the counter at a chemical supplier or big box store, but that certainly does not mean you should blithely begin fogging it at your remediation projects.

mold remediation

Photo courtesy of Goldmorr

You need to research its contents, registration, and approved uses. Remember, the liability is yours. You cannot count on the sample sender or retail outlet to provide you liability protection if you use a product other than for its intended/designed purpose. And most importantly, are you willing to risk the safety of your customers by failing to be in compliance with the manufacturer’s guidelines?

As an additional consideration, how effective is our chosen remediation product in accomplishing our intended purpose? Our aim should be to return the air to a normal level, for which there is an international standard. This standard outlines acceptable levels of particles in the air, referenced to, among others, the ISO (International Standards Organization) Standard and WHO (World Health Organization). Mold spores are hydrophobic (like Teflon), meaning they repel or fail to mix with water.  Anything water-based will not stick to water droplets, so fogging a water-based product (with or without a pesticide) will have very little effect.

In addition, EPA-registered products that are fogged into a lived in environment must have a clearance test to ensure any toxic ingredients are not left in the air to be breathed in by the building’s occupants.

Fortunately for today’s remediation professional, there are products available that have been chemically-engineered to create osmosis (a process by which molecules of a solvent tend to pass through a semipermeable membrane, from a less-concentrated solution into a more-concentrated one, thus equalizing the concentrations on each side of the membrane), which is a passive transport of the spore into the water droplets. Also, utilizing/employing a super cationic (any positively charged atom or group of atoms) process is the most effective way to scrub the air clean of mold spores and other airborne contaminants, since most single-cell microorganisms (like mold) are negatively charged. Opposites attract; and the positive charges from a cationic process will attract and capture the negatively-charged spores and other-related airborne contaminants.

Remember, to do a professional, effective, and safe mold remediation of your customer’s building environment, especially its air supply, use the right products the right way. Visit www.goldmorrusa.com for more information on our cutting edge mold remediation system.

mold remediation

Photo courtesy of Goldmorr

KEYWORDS: mold remediating products restoration business water mitigation

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Bret Sallee has over 30 years’ experience in the Mold/Fire/Water restoration and construction industries. He holds certifications in mold remediation and inspection. He currently serves as the National Trainer and Sales Representative for Goldmorr USA.

Robert Goldsworthy is the industrial chemist and director of 21st Global Pty Ltd, an Australian-owned company developing products for global distribution. He has 20+ years of experience and his successes to date include the decontamination, restoration, and protection of mold-affected buildings and artifacts; development of antimicrobial surface coatings; and development of a decontaminant used in the neutralization of weapons-grade Anthrax in biological warfare, tested and funded by the U.S. government.  

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References and Standard names

healthy house
November 17, 2018
This is article starts with the correct premise that chemical application must be done with care and safety, must be used for the correct purpose, and must follow specific directions for each product and chemical type. It would be better if this author, Mr. Goldmorr, gave us the names of the "standards" and "rules" he discusses. He says a lot but does not give us the actual reference quote or reference location. If this article is directed at the mold remediator, how exactly does fogging fit into the practice of removing mold contamination. I do not know of ONE standard that encourages chemical fogging as a method of remediation. What "international" standard provides the particles in air - which particles does he mean? If he means spores,hich standard for spores in air? What USEPA rule for "clearance" (for products used in typical mold remediation there is no "clearance" criteria for chemical residue); what USEPA rule requires a license (there is no such thing as a U.S. pesticide license). How does the "super cationic" really work? etc. The IICRC S520 Professional Mold Remediation Standard (truly international, AND a consensus developed document) does NOT recommend disinfecting. It recommends removal of the source, which means physically removing the mold growth and associated spores and fragments that are determined by an assessor to be the contaminant. A few science-based errors, perhaps poor writing, confuse the article even more. Osmosis is not a large spore (made of many cells) being "moved into" water; are spores really negatively charged and attracted to the "super cationic" liquid? (e.g., a 2016 Kuuluvainen research suggests spores can be both neg and pos charged during typical movement thru a space). Spores are regularly captured with liquid with a simple wetting agent, such as a mild (safe, low toxic) surfactant. Spores have not been shown to be hydrophobic to the degree that they can not be put into solution and removed during cleaning - i.e., they do not "repel" themselves away from the water. Hopefully, the reader will see the shortcoming of this article and realize it is nothing more than an advertorial for Mr. Goldmoor's products.

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Oriental Rug Cleaning Fairfield County
December 13, 2019
That’s really amazing and extraordinary blogs & can help those who get issues in searching this type of information.

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