Monday, September 1, 2014


By:      Edward R. Close, PhD, P.E., Senior Research Fellow, ISPE,


As a professional environmental engineer dealing with indoor air quality issues for many years I have tried, tested and otherwise investigated virtually every mold remediation method out there. In field tests conducted in 2005, I discovered that certain pure essential oils (specifically those meeting the therapeutic-grade standards established by Dr. D. Gary Young) are more effective, longer-lasting and safer than toxic chemicals such as bleach, bactericides and pesticides, as well as ultraviolet light (UV) and ozone, and all other hazardous substances that are commonly used for mold remediation.

In 2007, my wife, Jacquelyn A. Close, and I published the protocol used in 20 case studies with laboratory analytical data in our book Nature’s Mold Rx, the Non-Toxic Solution to Toxic Mold. We also compared the protocol using essential oils with other methods of remediation and explained some of the problems associated with the use of bleach, UV and ozone.

Among the many emails and phone calls we receive daily, we still get some of the same questions, over and over, even from some who have the book: “Why can’t I just use bleach?” and “I have UV and ozone generators in my air-handling system, do I still need to diffuse oils?” The reasons you should not use bleach are given in detail on page 19 in Nature’s Mold Rx, and the problems with UV and ozone are described briefly on pages 122 and 165. For the record, the short answer is:

All three are dangerous substances that can cause serious health problems, the mold remediation they accomplish is superficial at best, and they almost always fail to address the sources of serious mold infestation.

Environmental professionals have known this for at least a decade, but we’ve learned much more about ozone since the publication of Nature’s Mold Rx in 2007, and the purpose of this article is to provide you with an update.

 We have had several clients who have spent thousands of dollars on ozone generating units for mold problems, only to find them ineffective, or in some cases, causative of worse problems than mold. Unfortunately, they were victims of companies whose marketing campaigns misrepresented the facts.

Companies promoting the use of ozone for mold remediation in homes and offices are either ignorant of the facts, or, worst case, using deliberately misleading ads. According to some of these ads, ozone generators will not only remove the musty odor of mold, it will solve mold infestation problems by killing the mold. But such ads fail to mention that at levels needed to kill mold, human beings, pets, houseplants, rubber, leather, some fabrics, artwork, and electrical wiring, can be damaged by the oxidizing action of ozone.

Some Scientific Facts About Ozone

Exposure to ozone levels high enough to kill mold spores can lead to allergy-like reactions, chest pains, asthma attacks and breathing problems. Long-term exposure to ozone can cause permanent damage and weaken the body’s ability to fight infection, which can lead to cancer and other life-threatening diseases.

Ozone is a molecule composed of three atoms of oxygen. While the more stable two-atom oxygen is essential to life on this planet, ozone’s third oxygen atom is more weakly attached, allowing it to attach to molecules of other substances, producing a chemical reaction known as oxidation. It is ozone’s ability to oxidize and destroy biological molecules that makes it a potential fungicide and dangerous to human health at the same time.

Studies have shown that when ozone reacts with certain chemicals often used in paints and cleaners, it can produce horrible odors and harmful, irritating by-products like volatile organic chemicals such as aldehydes and formic acid. It is especially important to be aware of ozone’s known effects on human health, not only for those with compromised immune systems, such as those recovering from debilitating disease, surgery, or the side effects of drugs, but also because of its known effects on the very young and the elderly.

Ozone does not stop oxidizing biological molecules when it is taken into the body of a human being or pet. The extra oxygen atom is a powerful oxidizing radical. Free radicals, including oxygen radicals, are extremely damaging to our health, and are the opposite of anti-oxidants that we are encouraged to take to improve our health. Even low levels of ozone can damage the mucus membrane, sinus cavities and lungs.

Exposure to ozone levels high enough to kill mold spores can lead to allergy-like reactions, chest pains, asthma attacks and breathing problems. Long-term exposure to ozone can cause permanent damage and weaken the body’s ability to fight infection, which can lead to cancer and other life-threatening diseases.

What the EPA Has to Say About Ozone
The EPA, being uncharacteristically blunt, says:

Available scientific evidence shows that, at concentrations that do not exceed public health standards, ozone is generally ineffective in controlling indoor air pollution.

The EPA website specifically refutes ozone generator manufacturers’ claims about the effectiveness of ozone for indoor air remediation, including mold, as follows:

If used at concentrations that do not exceed public health standards, ozone applied to indoor air does not effectively remove viruses, bacteria, mold, or other biological pollutants.

Well-documented scientific and medical facts form the basis for a number of health standards related to ozone. In addition to the EPA, three other government agencies, including the Food and Drug Administration (FDA), the Occupational Safety and Health Administration (OSHA), and the National Institute of Occupational Safety and Health (NIOSH) have set standards and restrictions on ozone exposure for worker and public safety.

Uses of Ozone in Restoration

Like a lot of other things, ozone is not all bad. It can be used to remove odors from materials recovered from fires. But this is
done only under carefully controlled conditions, using air-tight chambers built for that purpose. Smoke damaged objects and materials are placed in a sealed chamber with high levels of ozone for a period of 24 hours or longer. Then, the ozone is pumped out of the chamber and thoroughly flushed with fresh air before anyone can safely enter and remove the contents.

Studies show that to kill bacteria and mold, the ozone levels must be at least ten times higher than the public health standards allow.

The effectiveness of this process using ozone to restore smoke-damaged materials led some manufacturers of environmental remediation equipment to speculate that ozone might be used to restore mold-contaminated objects. However, studies show that to kill bacteria and mold, the ozone levels must be at least ten times higher than the public health standards allow. A study done by the restoration industry concluded that even very high levels of ozone will not kill bacteria and mold embedded in porous materials like HVAC duct lining and acoustic ceiling tiles; and many restoration professionals have reported that when porous materials like upholstery, clothes and shoes are being treated for odors in ozone chambers, and there is mold growing on them, the mold is not killed in the process.

These facts, however, do not seem to discourage some manufacturers from promoting ozone generators for use in mold remediation. Recently, I did air sampling and testing for a client who had purchased several expensive ozone generating units and had them installed in the air-handling systems of a building used by a Christian youth ministry. They found that, although the level of ozone produced was below the levels considered dangerous by the EPA and OSHA, other than some reduction of odor, they had no beneficial effect, and the use of this equipment and the ozone it produced actually caused discomfort for many of the individuals spending time in the building.


Commercial ozone generators are generally ineffective for remediation of indoor mold, and may be detrimental to the health of plants, animals and human beings. They may also damage commonly used leather and plastic materials, paints and varnishes, and even electrical wiring. They should not be used in occupied spaces.

If you have ozone generating devices in your home or office, or are considering installing ozone generators for mold or other indoor air quality remediation, please visit the EPA’s website and read their report entitled:

“Ozone Generators that are Sold as Air Cleaners: An Assessment of Effectiveness and Health Consequences”.

Here is a link to the EPA website:

And if you have questions about how to use essential oils to address mold in buildings, then we suggest you acquire a copy of our book, Nature’s Mold Rx,  
which is available from many book retailers. You can find information on where to purchase the book at this link:

You can also request help with your mold remediation project through this link:

If you are just looking for information on how to use a diffuser and essential oils to address mold in your space, then please visit our 2014 Diffuser Recommendations page:

That is where you will find our latest diffuser recommendations, as well as directions for using the diffuser and Thieves Essential Oil to address mold in buildings using The Close Protocol.

1.    Pinto, Michael, 2005. Article: Ozone Generators and Interior Mold Remediation: A Recipe for Disaster, Cleaning and Restoration, April, 2005.
2.    American Lung Association. 1997. Residential Air Cleaning Devices: Types, Effectiveness, and Health Impact. Washington, D.C. January.
3.    Sawyer, W.A.; Beckwith, Helen I.; and Skolfield, Esther M. 1913. The Alleged Purification of Air by the Ozone Machine. Journal of the American Medical Association. November 13, 1913.
4.    U.S. Environmental Protection Agency (US EPA). 1995. Ozone Generators in Indoor Air Settings. Report prepared for the Office of Research and Development by Raymond Steiber. National Risk Management Research Laboratory. U.S. EPA. Research Triangle Park. EPA-600/R-95-154.

Dr. Ed and Jacqui Close

NOTE:  The information above is copyright protected and all rights are reserved.
Copyright EJC Advantage LLC and Edward R Close and Jacquelyn A Close, 2010-2014 and continuing.  

This information may not be reproduced, copied, pasted, or posted elsewhere through any means whatsoever. We invite you to provide a link to this webpage if you wish to share this information with others.

Friday, May 30, 2014

GET RID OF MOLD NATURALLY using Thieves Essential Oil

By Jacquelyn A Close

There are many natural options touted on the internet for getting rid of mold, but there is only one natural option currently available that has 3rd party independent testing proving that it works. That one option is the use of Young Living Essential Oils’ ThievesTM oil blend and Thieves Household Cleaner. This option was pioneered by Edward R Close, PhD, Professional Engineer, and founder of EJC Advantage, LLC. This option, discovered by Dr. Close, has been used throughout the world since 2005. The truly exciting beauty of this natural option for mold remediation is that it has worked every single time, when used in accordance with the protocol developed by Dr. Close. This website is dedicated to providing the most up to date information available on the use of Young Living Thieves Essential Oil for preventing and eliminating mold in buildings in as little as 24 hours.

Who is Edward R. Close?  Click here for more information:

So how did this discovery come about?

Dr. Close had a client who purchased an apartment building that had been flooded. After tenants had been relocated, the apartment building had been vacant and more or less abandoned for several years. Mold had run rampant throughout the apartments. The new owner hired Dr. Close to do environmental testing to show that the apartments could meet safety requirements for occupancy, these tests were stipulated as part of the government loan process for converting the apartments to low-income housing. The tests required included testing for asbestos, lead, mold and a few other potential hazards.

The new owner had already begun renovations of the apartments, tearing out anything and everything that had mold growing on it or showed signs of water damage. Many of the apartments had walls that were taken down to the studs, and even some of the studs had been replaced due to water damage. All sources of excess moisture had been eliminated. A cleaning company from St. Louis had been through the apartments and wiped down everything with bleach water. Even after all this was done, when Dr. Close took air samples, the levels of mold spores found in some of the apartments were extremely high.

The cleaning company came back and did another complete round of cleaning with a cleaner that their supplier told them would take care of anything because it was used in hospital clean rooms. Samples were taken again, and once again the level of mold spores were extremely high.

Dr. Close suggested the cleaning company use a toxic industrial strength fungicide. They came back and stopped work because this was so toxic, no one could be in the space working while the fungicide was deployed. Again samples were taken, and while mold levels were slightly lower, they were still far above the levels found in the ambient outside air.

Dr. Close was talking with me, his wife, at breakfast one morning about the problem he was having with mold at this facility. He told me he didn’t know how to advise his client. They had done everything and considerably more than was normally recommended to get rid of the mold in these apartments and nothing was working.

I said:  Why don’t you ask them to let you do with a test with the essential oils? Look it says right here in this book that oils are antifungal. And we know these oils are safe enough to take internally, we take them on a regular basis and have been for over six years now.

He said:  I’m not going to suggest that my engineering clients use aromatherapy to get rid of mold. They would laugh me out of the country. I would lose my engineering license. We wouldn’t have a business any more. Is that what you want?

I said:  Just tell them you want to do a test and that you have an antifungal agent that is safe, but you don’t know whether it will work or not. Offer to do the test at no cost to them, if it doesn’t work. And only charge them for the laboratory analyses, if it does work.

He said:  I’m not going to suggest anything like this to my client, unless you can show me the Science!

So, I went to the library and I went online and looked up scientific documentation of the antifungal properties of essential oils, and I found a lot of it. You can find it too. Just do a search online for essential oil and antifungal. Most of the studies were done in the food industry or in laboratories. There was nothing specifically about using essential oils to get rid of mold in buildings, but there was ample proof that essential oils have antifungal properties. So, I printed everything out and brought him a stack of scientific papers about 2 feet high and handed them to him.

He looked through some of them, and said:  Okay, oils have antifungal properties, but none of these tell you how to get rid of mold in buildings using essential oils.

I said:  That’s why God has given this information to you. He is calling you to provide this knowledge for the world. This is His gift to His children, through you. We are God’s hands and feet, His arms and hands. He puts things in front of us and asks us to step up and help someone in a way that glorifies Him. Will you talk to the clients and ask them to let you do a test?

He said:  I don’t know how to do a test with essential oils. How am I supposed to get oils throughout these apartments? How much oil do I need? How long will it take?

I said:  I don’t know the answer to that, but you’re the engineer, you figure it out. I’ll pick the best oils to test. You figure out the rest.

So, he did. He took the equipment we had available, and the oils we had available, and he did some calculations and determined how long he would have to run a small cold-air diffuser in order to saturate the entire space in one apartment with enough essential oil mist to have some chance of impacting the mold in the air. He told the client, I’ve got another option to try. I don’t know if it will work, but if it doesn’t, I won’t charge you for it.

The client said:  Well, we’ve sunk a lot of money in this project and we still can’t rent the apartments. Nothing else has worked, but if you think there’s even a chance this might work, we’re willing to have you do it. From our perspective, it’s our ONLY option at this point.  And we’ve got nothing to lose.

So, the first test using essential oils to eliminate mold in buildings was run in November, 2005.  Samples were collected before and after diffusing the essential oils for 24 hours in one test apartment. The samples were sent to a 3rd party environmental laboratory for all testing. Here are the independently verified results:


This test was done in another location.


Is additional research still needed? Yes. However, there have already been over 300 test cases personally performed by Dr. Ed Close. Thanks to his efforts, the first 3 case studies are available in a DVD. The first 20 Case Studies are available in a book. And since 2005, this option has already been used by pregnant and nursing mothers, hospitals, Neo-Natal Intensive Care Units, schools, nurses, and a growing number of medical doctors, as well as thousands of homeowners with children and pets, without negative side effects. And it has worked every single time. 

We do not know and cannot predict how a specific individual will respond to the essential oils because we are all unique creations of God. We have different body types, different blood types, different body chemistries, and what works for one person may not work the same way for another. However, we do know without question that the Close Protocol for preventing and eliminating mold in buildings is currently the best option available for homeowners and business owners, public officials, and anyone looking to address mold in buildings. It works. This has proven to be one of the safest, most effective means to address mold and fungi in buildings ever discovered.

If you are having health problems you think may be the result of mold exposure, then you must eliminate mold from your environment to the extent possible. Why not choose a non-toxic, eco-friendly, life-supporting, God-created remedy that provides your body with the support it requires to enjoy the State of Perfect Health intended for you by God from the first moment of creation? 

If you would like to try the Close Protocol, please click this link for information on what to order:  WHAT TO ORDER.

If you would like help in using the Close Protocol, check out the 2014 DIFFUSER RECOMMENDATIONS page. If you don't find the answers you are looking for there, then please visit our REQUEST HELP page, or contact us at the phone number below.

Wishing You Vibrant Health and Abundant Blessings!

Dr. Ed and Jacqui Close

Edward R Close and Jacquelyn A Close
© Copyright May 30, 2014, 2015 and continuing
Jacquelyn A Close, Edward R Close, and EJC Advantage, LLC.
This information is copyright protected and may not be distributed, copied, or transmitted by any means whatsoever without written permission from the authors. If you wish to share this information with others, please refer them to this website.