Exact Answer: Near About 30 Minutes
Ozone is a highly reactive gas that is made up of 3 atoms of Oxygen. Most probably we have heard of it as the ozone layer gives protection to our earth from the ultra-violet rays of the sun.
In today’s time, ozone has found a lot of uses in our day-to-day life. Be it pulp bleaching for chlorine-free production of paper, food processing, and preservation, or ozone generators. No doubt it has many uses, it is hazardous to human health if inhaled. So, it is really important to know how much time it takes to ventilate.
How Long to Ventilate After Ozone?
Usually, it takes around 30-40 minutes for all of the ozone to dissipate from a place, if all the windows and doors have been opened. In case the windows have not been opened, it takes around 1-2 hours. You need to keep in mind that the room’s proper ventilation is really important.
The most common place where ozone is used in our everyday life is in humidifiers and air purifiers. A humidifier helps in humidifying the space. Similarly, air purifiers work to purify the air supply of a given area.
The time taken by the ozone to ventilate depends upon 3 factors. These factors are very obvious, the first one being the amount of ozone released in specific areas. The more the amount, the more time it will take to dissipate. Higher amounts of ozone will take a longer time.
The second factor is the area. The amount of space that is being filled by the ozone also decides its dissipation process. A large amount of ozone in smaller space will take much more time to ventilate. If the area is larger, the ozone present will ventilate much faster as compared to the smaller room.
The third factor is the proper ventilation of the area. If the area has a good number of windows etc, the ozone will disperse much more easily. At the same time, even if the room is big but there is no proper ventilation in the room, the ventilation of the room to remove ozone takes much more time.
| Ventilate after Ozone | Time |
| Small room | 40-60 minutes |
| Larger room | 30 minutes |
Why Does It Take So Long To Ventilate After Ozone?
As mentioned earlier, the time of ventilation of ozone depends upon the quantity of ozone present as well as the area in which it is filled. The ventilation process in a room with a good number of windows, etc. would be faster vice versa.
It is very important to ventilate the place after ozone. You can enter the area only after 30-40 minutes when the area has been ventilated properly. This is because ozone is a highly reactive gas which is why it is very toxic. People of all age groups are affected by it. Be it, children or adults, all suffer from certain symptoms when exposed to ozone.
Now that you know the ventilation time, you should also be aware of the problems created when a person comes in contact with ozone. Cough and sore throat are major problems. Then comes the issue of heavy breathing, inflamed and damaged airways. Lung diseases such as asthma, bronchitis might also be caused.
However lower amounts of ozone cause chest pain, shortness of breathing, coughing, irritation, etc. the lungs recover within few days. If a person is exposed to it again and again, a lot of damage to the lungs will be there.
Conclusion
It takes 30 to 50 minutes to ventilate after the area has been exposed to ozone. The ventilation process depends on various factors as mentioned above. It is advisable that the person enters the area after all the ozone has been removed from there.
Whether in pure form or mixed with some other gas, ozone can be harmful to humans. Ozone is used at various places today, such as water purification, wastewater reuse, air purifying, and much more. A person might be exposed to it. All you need to do is stay cautious and pay heed to the proper ventilation of that area before you enter there.
References
- https://www.sciencedirect.com/science/article/abs/pii/S0360132312002557
- https://pubs.acs.org/doi/pdf/10.1021/es60076a001
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