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

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

3. Instrument and equipment damage: The filter element of the ultrapure water machine plays a role in protecting 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, resulting in equipment damage and performance degradation, increasing maintenance and replacement costs.

4. Maintenance difficulties: Long term failure to replace the filter element can lead to the accumulation of pollutants inside the filter element, increasing the risk of clogging and making filter element replacement difficult. If the filter element is too clogged, it may need to be cleaned or replaced more frequently, increasing the maintenance work and cost of the equipment.

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 the water source, 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 clogged or damaged, the water flow may be obstructed, 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. Shortened lifespan of filter element: If the filter element filters water for a long time and the water quality load is too high or exceeds its design range, the lifespan of the filter element may be shortened. This means more frequent replacement of filter cartridges, 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 lifespan 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.