The length of time the organism is exposed to light determines how effective it will be. In addition to the length of time, the intensity and the wavelength also play a crucial part. The results can also be affected by the presence of some particles that can protect the microorganisms from the UV light. If you want to obtain more accurate results, you have to pass the water or air several times through the UV in order to detect as many microorganisms by the UV light as possible. Many are the times when sterilization is said to be workable processes. Most businesses know that it is not easy to achieve such results as sterilization and therefore opt to use the word disinfection. You will find other firms say that they are offering 99% effectiveness. A cell can use UV light to repair damaged DNA. The process through which they do this is known as light and dark repair. In this case the effectiveness will depend on the line of sight exposure to the UV light. If the bulbs have some dust coating it will lower the effectiveness. The bulbs will, therefore, have to be cleaned to make sure that the results do not interfere with so much.
At times they will also have to be replaced if you are to get results that are close to the right thing. The lifetime of any germicidal bulbs depends on the design. They are also affected by the different materials used. The airflow cools the lamp, and that contributes to lower the UV output. Therefore it means that it is important to shield the lamps flow airflow so that cooling does not take effect because if it does it will lower the effectiveness of the UV. Some of the things that can increase the effectiveness are things like use of reflection. The results can be highly enhanced by the use of aluminum which is highly reflective. If you want to evaluate the efficiency of the UV in water disinfection, you can calculate the dose.
When carrying out these operations care must be exercised because of the process is not done in the right way it will give you entirely different results. That means that the results that are used will have a different effect altogether because they are based on the wrong findings caused by interfering with the processes. That will mean that the products made after the finds should not be trusted depending on how much are the results affected by the interference of the process. That is why regulatory bodies need to ensure everything goes in the right way.