Where "That Chlorine Smell" Comes From

If you've ever visited a public pool, you've probably noticed "that chlorine smell" in the air that people commonly associate with chlorine. But did you know that the smell isn't actually from chlorine?

Instead, it's caused by chloramines, a byproduct of chlorine reacting with sweat, oils, and other substances introduced into the water. Ew, right?

What are Chloramines?

Chloramines are formed when chlorine reacts with nitrogen-containing substances like urine, sweat, and other organic matter. Unlike chlorine, which is a gas at room temperature, chloramines are a type of compound that's soluble in water. They can cause eye and skin irritation, and their unpleasant odor can be a sign of poor water quality.

Chloramines are not only unpleasant to smell, but they can also be harmful to swimmers' health. When swimmers breathe in chloramines, they can experience respiratory issues like coughing, wheezing, and shortness of breath. Prolonged exposure to chloramines can also lead to more serious health problems, such as asthma and lung damage. 

In 2022, I went swimming in a hotel pool that had "that chlorine smell" and it was strong. I should have listened to my gut, but instead, we continued to swim and as a result, I ended up with pneumonia. 

Definitely not what you want to experience on vacation.

How Ocion Blue can help:

First of all, Ocion Blue kills all the bacteria and algae that comes into your water. There is no odour to Ocion Blue, and since there is no bacteria or algae to react to the chlorine, you won't experience any of "that chlorine smell" in your pool or hot tub. Period. 

In addition to its water treatment capabilities, Ocion Blue is also highly efficient and cost-effective. It requires minimal maintenance, and its low operating costs can save pool and hot tub owners money in the long run. Ocion Blue also has a long lifespan, meaning it does not dissipate like chlorine, and simply stays in your water, even when you're not using the pool or hot tub.


To sum it up, "that chlorine smell" at the pool isn't actually caused by chlorine, but by chloramines, and they don't exist in the presence of Ocion Blue. 

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