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Which Concentration of Hypochlorous Acid is Best for Cleaning and Disinfecting: 200ppm or 500ppm?

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Updated: Feb 29, 2024




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Understanding Hypochlorous Acid (HOCl)

Hypochlorous Acid, or "HOCl," is a "soft" acid that is made through the electrolysis of saltwater, a process that yields a potent yet gentle disinfectant capable of catering to a myriad of industrial needs. Its versatility is highlighted by the availability in varying concentrations, notably the 200-ppm and 500-ppm solutions, each tailored to specific disinfection requirements. At lower concentrations, HOCl presents a mild yet effective option for applications demanding safety and subtlety, such as in food processing or agricultural sectors. Conversely, the 500-ppm variant offers a more robust solution, ideal for high-risk areas prone to microbial contamination, including healthcare facilities and water treatment plants. This range in concentration levels underscores the adaptability of HOCl, allowing businesses to select a strength that aligns perfectly with their operational demands and safety standards, thereby optimizing both efficacy and efficiency in their disinfection protocols.





Different Concentrations and what they do.

Hypochlorous Acid (HOCl) stands out for its incredible ability to kill germs effectively while being safe for use across a diverse array of applications. It's a unique solution that combines the power of strong antimicrobial properties with safety, making it versatile enough for everything from healthcare to food preparation. This balance of potency and safety allows it to be used in various settings, offering a reliable way to maintain cleanliness and promote health without the harsh side effects of stronger chemicals.


At lower concentrations, between 50-200 parts per million (ppm), it's mild but still strong enough to be useful. It's great for helping wounds heal faster, taking care of your eyes, and keeping sensitive places like childcare centers and kitchens clean without being too harsh.


When you need to tackle really tough germs, a stronger concentration, like 500 ppm of HOCl, is what you'll want to use. This level is meant for heavy-duty cleaning, like in industrial settings or where you need to get rid of a lot of germs quickly. Despite its strength, it's still safe, making it an excellent choice for serious disinfection jobs.


500-PPM HOCl (Pros & Cons)

Pros of 500 PPM Hypochlorous Acid:

At 500 PPM, Hypochlorous Acid (HOCl) is extremely powerful for disinfection and sanitization. It's 80-200 times more effective than bleach in surface cleaning and is safe due to its natural production process. It's nontoxic, non-allergenic, leaves no harmful residues, and it's safe on living tissues.


The high concentration of HOCl means you spend less time cleaning. It works quickly, needing just a few seconds to a few minutes to be effective. This makes it an ideal choice for places that are high-risk, like hospitals, labs, and other areas where preventing the spread of germs is critical.


At 500ppm, HOCl exhibits a higher antimicrobial activity which makes it highly effective against a wide range of pathogens, including bacteria, viruses, and fungi as listed below:

- E. Coli

- Klebsiells Pnueminoa

- Carbapenem Resistant CDC

- Listeria Monocytogenes

- MRSA

- Pseudomonas Aeruginosa

- Norovirus

- Rhinovirus

- Rotavirus

- HIV

- Influenza A Virus (H1N1)

- RSV

- SARS/COVID-2 

- Salmonella Enterica

- Staphylococcus Aureus

- Tuberculosis or TB

- Adenovirus

- Swine Flu Virus

- Candida albicans

​Cons of 500 PPM Hypochlorous Acid:

While 500 PPM Hypochlorous Acid (HOCl) is an effective disinfectant, there are a few considerations to keep in mind. At this higher concentration, HOCl can be more aggressive. This means it’s not suitable for skin care, wound care, or aquaculture.


When we use a higher concentration like 500 PPM, we trade quantity of uses for quality of disinfecting. This means that while 500 ppm HOCl can be excellent for surface disinfection in settings that require rigorous sanitation, such as hospitals or food processing plants, it may not be the best choice for more delicate applications. In these cases, a lower concentration, such as 200 ppm HOCl, may be more appropriate, as it can provide effective antimicrobial action with a reduced risk of adverse effects on skin, tissues, or aquatic environments.


200-PPM HOCl (Pros & Cons)

Pros of 200 PPM Hypochlorous Acid

200 PPM Hypochlorous Acid (HOCl) is an effective and versatile disinfectant, suitable for a variety of settings including homes, offices, and light commercial environments. Its lower concentration ensures it is gentle enough for everyday use without compromising on its ability to effectively combat pathogens. This makes it ideal for routine cleaning and sanitization, where safety and minimal residue are important considerations.


The efficacy of 200 ppm HOCl against a range of microorganisms, including bacteria and viruses, makes it a reliable choice for maintaining hygiene standards in less critical environments compared to medical or high-risk areas. It's particularly useful where there is a need for frequent disinfection without the risk of material degradation or harm to sensitive skin.


Cons of 200 PPM Hypochlorous Acid

To sound only a little bit repetitive...we are now sacrificing quality of cleanliness for a wider range of uses. When it comes to industrial, business, or high-risk areas, its recommended that 500 PPM Hypochlorous Acid is utilized to ensure a clean and safe environment.





Conclusion

Hypochlorous Acid (HOCl) offers a range of benefits due to its powerful antimicrobial properties, non-toxicity, and environmental friendliness. Whether you're looking for a safe disinfectant for household use, a reliable solution for industrial sanitation, or a gentle yet effective option for personal care and wound healing, HOCl may provide the ideal solution. Always ensure to use it as directed and consult with professionals when necessary to make the most out of this versatile compound. With its broad spectrum of uses, Hypochlorous Acid stands out as a compelling choice for those prioritizing safety, efficacy, and sustainability in their cleaning and care practices.










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