1. Water quality degradation: The main function of the filter element is to remove impurities, ions, and microorganisms from the water, ensuring the purity of the water. If the filter element fails or expires, it will not be able to effectively filter pollutants in the water, leading to a decrease in water quality, which may result in increased conductivity and decreased dissolved oxygen.

2. Experimental results are affected: In the laboratory, high purity water quality is crucial for the accuracy and repeatability of experimental results. If the filter element expires or is damaged, impurities and ions in the water may affect the accuracy of the experiment, and even affect the repeatability of the experiment, thereby affecting the interpretation and comparison of experimental results.

3. Instrument and equipment damage: The filter element of the ultrapure water machine serves to protect the instrument and equipment, preventing pollutants from entering the instrument and pipeline system. If the filter element fails or becomes clogged, it may cause pollutants to enter the instrument and pipeline system, causing equipment damage and performance degradation, increasing maintenance and replacement costs.

4. Difficulty in maintenance: Failure to replace the filter element for a long time can lead to the accumulation of pollutants inside the filter element, increase the risk of clogging the filter element, and make it difficult to replace the filter element. If the filter element is too clogged, it may need to be cleaned or replaced more frequently, increasing equipment maintenance work and costs.

5. Bacterial growth: Bacteria and microorganisms may grow inside the filter element, especially when the filter element has been used for a long time or the water quality is poor. These bacteria and microorganisms may contaminate water sources, increase the microbial load in the water, and may have adverse effects on experiments and applications.

6. Water supply interruption: When the filter element is severely blocked or damaged, the water flow may be blocked, and even the water supply may be interrupted. This will result in the laboratory being unable to obtain the required high-purity water, affecting the progress of experiments and work.

7. Shortening the lifespan of the filter element: If the water quality load of the filter element is too high or exceeds its design range for a long time, the lifespan of the filter element may be shortened. This means more frequent replacement of filter elements, increasing the frequency and cost of equipment maintenance.

It is very important to regularly replace the filter element of the ultrapure water machine. It is recommended to develop a reasonable filter replacement plan based on the service life of the filter element and the usage of the equipment. In addition, regular cleaning and maintenance of the filter element are also key to maintaining stable performance of the ultrapure water machine and extending the service life of the filter element. Following the manufacturer's recommendations and performing proper filter maintenance can ensure the reliability of the ultrapure water machine, the stability of water quality, and the accuracy of experimental results.