Understanding Air Purifiers And Ozone Generators

Air purifiers play a crucial role in maintaining clean indoor air quality. They help remove airborne contaminants and eliminate unpleasant odors in homes, offices, and even vehicles. While ozone generators can offer rapid results in cleaning the air, it&#;s essential to understand that they can be harmful to your health, especially your respiratory system.

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The same molecular process that makes ozone generators effective at air cleaning is what makes them potentially hazardous. If you&#;re considering using an ozone air purifier to combat strong odors or mold, it&#;s crucial to be well-informed about their history, proper usage, and the alternatives available.

What is Ozone?

Ozone, a molecule made of three oxygen atoms (O3), differs from the oxygen we breathe daily, which is dioxygen (O2), composed of two oxygen atoms. The third oxygen molecule in ozone is unstable and loosely connected to the other two.

Ozone has a remarkable ability to attach itself to various pollutants, particularly strong odor sources like smoke, as well as viruses, bacteria, mold spores, and organic matter. Once ozone attaches to these pollutants, it effectively eliminates them. This unique property allows ozone to clean and deodorize indoor spaces quickly.

Exploring Ozone Air Purifiers

Ozone generators, also known as ozone machines or ozone air purifiers, are commonly used to &#;clean&#; the air and remove stubborn odors. These machines work by generating ozone, a process that naturally occurs in the atmosphere. However, it&#;s essential to note that just because something is natural doesn&#;t mean it&#;s safe for your health.

Ozone is highly reactive and challenging to store for extended periods with current technology. Therefore, ozone must be generated on-site using sophisticated machines. Ozone air purifiers draw in oxygen from the air (O2) and give it a powerful electrical charge. This charge causes the oxygen molecules to rearrange themselves and form ozone (O3). The generated ozone is then released into the air.

When ozone molecules come into contact with pollutants such as mold or smoke, the third oxygen molecule attaches to the pollutant&#;s molecules, effectively eliminating them. This process works on bacteria, fungi, germs, odors, and other contaminants at the molecular level while reverting the ozone back to oxygen.

Ozone generators find applications in various scenarios:

1. Killing Mold and Mildew: Ozone air purification is commonly used to &#;blast&#; or &#;shock&#; mold and mildew, which can be harmful to health, especially to the respiratory system. Mold and mildew can trigger asthma and allergies, making their removal a top priority. Ozone generators can efficiently remove mold in a quick and cost-effective manner.

2. Removing Bacteria, Germs, and Viruses: Disease-causing substances like bacteria, germs, and viruses can lurk in common areas like kitchen sinks, bathroom floors, and even everyday objects such as remote controls and salt and pepper shakers. Ozone generators are effective at removing these disease-causing substances by attacking them at the molecular level.

3. Eliminating Odors: Ozone generators are frequently used to eliminate stubborn odors. They target the airborne cells responsible for creating these odors, effectively neutralizing them. This is valuable for scenarios such as removing lingering tobacco smoke smells in hotel rooms or getting rid of pet odors in rental properties.

Safe Usage of Ozone Generators

If you decide to use an ozone generator to combat mold, bacteria, or odors, it&#;s crucial to follow safe practices:

Begin by removing the source of the odor and thoroughly cleaning the affected area. This includes using safe liquid cleaners, vacuuming carpets, wiping surfaces, and dusting. Effective cleaning may negate the need for ozone treatment altogether.

In most cases, it&#;s best to hire professional cleaning and odor-removal services that utilize ozone generators as part of their offerings. Experienced professionals have the necessary training and skills to perform ozone treatment safely and efficiently.

If you choose to use an ozone generator yourself, closely follow the instructions provided with the machine. Typically, you should run the generator with the windows closed. Once the treatment is complete, allow sufficient time for the ozone to dissipate completely before re-entering the treated area, which may take a few hours.

While ozone generators have their applications, room air purifiers can often achieve the same objectives without the associated health risks. Air purifiers generally do not release pollutants into the air but instead filter them out.

Air purifiers work by drawing in air and passing it through various filters designed to trap contaminants, allergens, and other substances. This is a crucial difference from ozone generators, which release a chemical to sanitize the air outside the machine.

Air purifiers provide an effective and safer alternative to ozone generators for maintaining clean indoor air quality.

In conclusion, while ozone generators have their uses, it&#;s essential to be aware of the potential health risks associated with their use. Safe alternatives, such as room air purifiers, are available to help you achieve clean indoor air without compromising your well-being.

Big&#;s Mobile Recommends the Best Ozone Air Purifier: Enerzen Ozone Generator 11,000mg Industrial O3 Air Purifier Deodorizer

When it comes to selecting the right ozone air purifier, Big&#;s Mobile recommends the Enerzen Ozone Generator 11,000mg Industrial O3 Air Purifier Deodorizer. This reliable air purifier offers effective air cleaning without the harmful effects of ozone gas, ensuring your health and well-being are protected.

Reviewed by Dr. Yogi Goswami PhD, Co-founder and Chief Scientist

Advertising can be powerful. You may have heard manufacturers describe ozone generators as &#;natural odor removers&#; that work &#;the way nature intended.&#; But are these claims misleading? Find out more about ozone air purifiers in this article to help you decide what is best for you and your family.

What is ozone?

As you may know, ozone is a gas. Ozone molecules have three oxygen atoms (O3), unlike the oxygen in the air that gives life to the planet (O2). Ozone is powerful because the extra oxygen atom can easily escape and attach to other substances. This highly reactive quality can potentially alter the chemical composition of some substances in the air and affect our cells if we breathe it in.

When you hear the term &#;ozone&#; you may think of the ozone layer, which protects all life from the dangerous UV radiation of the sun. This is the &#;good&#; ozone that is present in the stratosphere. But the ozone at ground level is &#;bad&#; since it is hazardous to health and is classified as an air pollutant by the EPA. Ozone at the ground level is created in nature by the interaction of sunlight with certain chemicals that are released to the environment, including vehicle and industrial plant emissions. It is also created when lightning strikes, which is why you may be able to smell ozone after a storm. Ozone, whether pure or mixed with other chemicals, can be harmful to health.

Is ozone bad for you?

Yes, whether ozone is mixed with other chemicals or in pure form, it can be harmful to your respiratory system when inhaled.

Since the early 20th century, health professionals have warned about the dangers of ozone. Just as it reacts with substances outside of the body, it can react with the living tissue within your body. This means that ozone can cause a variety of health problems, like coughing and airway inflammation. It can also reduce lung function and harm lung tissue. Certain groups like children, people with asthma, and older adults are especially vulnerable.

You may have heard of the Clean Air Act. Under this federal law, the Environmental Protection Agency (EPA) sets standards for outdoor air quality to protect public health. There are six air pollutants that the agency has set standards for, and ozone is one of them. If ozone is dangerous enough for the EPA to monitor outdoor levels, then it is all the more dangerous for ozone generators to release pure ozone into your home.

For context, the US Food & Drug Administration (FDA) requires that indoor medical devices can only produce a maximum of 50 ppb (parts per billion) of ozone. The National Institute of Occupational Safety and Health (NIOSH) recommends that indoor ozone levels should not be greater than 100 ppb.

What are ozone generators?

Ozone generators, also referred to as ozone machines, are ozone-generating devices that intentionally produce ozone gas. When sold as air purifiers to be used in indoor occupied spaces, they are marketed to be safe and effective (though these claims are generally false). This article discusses devices that produce ozone on purpose and not as a byproduct. Ionizers and electrostatic precipitators end up producing ozone as a byproduct as a result of their internal mechanisms.

You may have heard about ionizers. They used to be quite popular and were often used in homes to clean the air and eliminate odors. However, in the spring of , Consumer Reports Magazine exposed the units as potentially doing more harm than good&#;it was found that several of these devices could produce harmful levels of ozone. Though ozone is a byproduct of these ionizers, and tends to be produced at a lower level than ozone generators, the federal government began a stricter regulation process for any air purifier that produces ozone, whether intentionally or as a byproduct.

No federal agency has approved the use of ozone generators in occupied spaces, and the California Air Resources Board (CARB) has very strict regulation for air purifiers sold in California to make sure that harmful ozone levels are not being produced.

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How do ozone generators work?

Ozone generators produce ozone by breaking apart oxygen (O2) molecules into single atoms, which then attach to other oxygen molecules in the air to form ozone (O3). They accomplish this in one of two ways, according to the International Association of Certified Indoor Air Consultants (InterNACHI).

Ozone generators work by:

• Silent corona discharge: These machines use electric discharge to produce ozone by splitting the normal oxygen molecules in the air into single atoms. These atoms then attach to other O2 molecules in the air to form ozone (O3).
• Ultraviolet radiation: This process of ozone generation is similar to how the sun&#;s ultraviolet radiation splits O2 to form individual oxygen atoms. According to InterNACHI, this process is considered to be less efficient than corona discharge.

Why are ozone generators used to purify the air?

If ozone is so dangerous, then why would anyone use it to purify the air inside a home? As discussed above, ozone is highly reactive and can change the chemical composition of some substances in the air. This principle forms the basis of manufacturers&#; claims.

Companies who sell ozone generators may suggest that ozone is a healthy kind of oxygen, using terms like &#;activated oxygen&#; or &#;pure air,&#; though ozone is actually a toxic gas that is not the &#;same as air&#; like manufacturers may claim. Ozone-generating devices are often marketed as odor removers. Ultimately, they are used to remove organic compounds from the air. However, given its danger to health, it would be wise to use an ozone generator only if there are clear benefits.

How effective are ozone generators?

Manufacturers&#; claims

Manufacturers say that the highly reactive nature of ozone allows it to easily attach to pollution, especially odorous compounds like smoke and organic matter such as viruses, bacteria and mold spores. However, these claims are not backed up by sound science.

Performance against mold and bacteria

Research has found that ozone generators were not effective at stopping mold or bacteria growth in a standard hospital room, and would require unsafe levels of ozone to do the job at all (Dyas, Boughton, & Das, ). For mold growth, public health departments do not recommend using ozone generators for clean-up, saying that ozone even at high levels cannot control mold.

Performance against VOCs

You may be asking yourself, if ozone gas is effective at anything, it should work on other gaseous pollutants (specifically volatile organic compounds, or VOCs) right? Well, it might not, unless you wait for thousands of years in some cases. A research study (Boeniger, ) analyzed how long it would take to remove 14 of the most common organic compounds found in the air. It was found that at ozone concentrations of 100 ppb, it would take 880+ years for six of these pollutants to be broken down into half of their initial concentrations (half-lives). In fact, it would take more than 4,400 years for formaldehyde! Only one pollutant, styrene, was found to have a half-life of about 4 hours.

Performance against particulates

You must remember that ozone generators do not remove particulate matter like dust or pollen (which are often allergens) from the air.

The EPA&#;s conclusion about effectiveness

The EPA concludes from a review of scientific research that at concentrations that meet public health standards, ozone is not very effective at removing indoor air contaminants.

Can ozone generators remove odors?

The million dollar question for you might be whether ozone generators can remove odors from the air. That at least is what manufacturers claim to be the most common use for ozone generators in homes.

However, the evidence is mixed as to whether ozone generators can remove most odors from the air. As mentioned above, ozone generators may not work efficiently at all for gases, namely volatile organic compounds (VOCs), as it could take hundreds of years for this process.

Yet, some research reviewed by Britigan, Alshawa, and Nizkorodov () has shown that ozone may be effective for certain types of VOCs (namely, those containing unsaturated carbon-carbon bonds). These types of VOCs are found in cooking oils, air fresheners, cleaning agents, etc. However, there is a big downside: other dangerous byproducts like formaldehyde can be released into the air when ozone reacts with these substances.

Here is another important point: What you might perceive as odor removal may just be facade. Odors in a room could be masked by the smell of ozone being released into the air. Many people who use ozone generators like the smell that is produced, describing it as a &#;clean sheet smell&#; or the smell of clothes fresh from the dryer (EPA, ).

What are the safety precautions of ozone generators?

Ultimately, you need to know that no agency of the federal government has approved using ozone generators in occupied spaces. If you must use one or have no choice in a certain situation, you should take every measure possible to make sure they are never used when people or animals are present in the room. Plants also should be kept outside of the area.

Many times, if ozone generators are used, they are used for commercial cleaning in hotels, cars, etc. Many hotels use them inside a room just before new guests arrive, which can be harmful because of any residual ozone that lingers in the air. Manufacturers of ozone generators recommend they only be used by trained professionals for odor removal, and that all other steps, like cleaning the area and removing any sources of the odor, should be done first.

What are some better solutions?

There are other solutions that are much safer and more effective than using any device that may cause an accumulation of ozone. The initial recommended steps are also the lowest-cost solutions to improving air quality. First of all, you should always try to remove the sources of odors or pollutants as much as possible. Second, you should try ventilating the area to allow for better air circulation in your home, if possible. You may want to disregard this step if you live near a source of high-level outdoor pollution or outdoor air quality is poor.

Afterward, using an air purifier that is not an ozone generator could be a good option to try. There are different types of air purifiers out there, from mechanical filters (like HEPA) that only remove particles from the air, or gas-phase filters like carbon filters that are only designed to remove VOCs. If you would like a more complete solution for cleaning the air, you might consider the Molekule technology, which is highly effective against mold, VOCs, allergens like pollen, bacteria, and viruses. It also destroys VOCs and biological contaminants, unlike the traditional air purifiers like HEPA that simply trap particles.

Additionally, if you are especially concerned about odors, there are other, much safer ways to make your room smell fresh.

Conclusion

The negative aspects of ozone generators definitely outweigh any potential positive benefits, and it is best if you consider safer and more effective solutions for improving your indoor air quality, such as an ozone-free air purifier. Manufacturers of ozone generators often make false claims about their devices and say they are effective at odor removal. Overall, these devices are strictly regulated by federal law and the EPA and other federal agencies like the Air Resources Board (ARB) warn about their health dangers.

In general, there is no scientific evidence that ozone generators are effective, unless they produce extremely high levels of ozone. Ultimately, there are much more efficient, safer solutions to air quality problems. You can provide a safe space with clean, fresh air for you and your family through other methods including source control, ventilation, and using other air purifier options.

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