The length of time the organism is exposed to light determines how effective it will be. The wavelength and the intensity of the light are also other important determinants of the entire result. The results can also be affected by the presence of some particles that can protect the microorganisms from the UV light. in order to make sure the results are carefully correct, the air or water is repeatedly exposed to the UV light to make sure that a significant number of microorganisms are exposed to the light. Many times sterilization is quoted as being achievable. in most cases it was difficult to achieve sterilization and that is why many companies use the word disinfection in order to avoid misusing words. 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. The side of the exposure to the UV light is the one that will determine how efficient the process is for the right results. You can get different results if there is some dust covering the bulbs. The bulbs will, therefore, have to be cleaned to make sure that the results do not interfere with so much.
To ensure that the effectiveness is maintained, the bulbs will also have to be changed from time to time. The design of the germicidal bulbs determine how long they will live. They also rely on the various materials that are used. When there is airflow it cools the lamp making the output of the UV to go down. If you are to get more accurate results, you need to ensure the lamps are shielded from the direct airflow. If you want to increase the performance of the UV, you can use reflection. One of the materials that can help you to achieve this effect is aluminum because it has a very high rate of reflection. If you want to evaluate the efficiency of the UV in water disinfection, you can calculate the dose.
All these processes need a lot of care if you are to get the right results because a slight interference in the process will give completely different results. It is dangerous to get results that are far from the truth because that will mean the decision that are made are not correct and they will not have the intended effect. That will mean that the product that is made out of those conclusions may not be used for consumption depending on the deviation of the results or the effect of the interference experienced. It is therefore important to have regulatory agencies taking care of those processes to ensure they meet certain standards.