The replacement cycle of industrial air conditioning filters typically depends on multiple factors, including the usage environment, air quality, filter type, and manufacturer recommendations. Here are some specific reference information:
Primary filters: Manufacturers generally recommend replacing them every 2-6 months. If the filter uses washable media, it can be replaced every 1-2 months and washed with water or a solution containing a neutral detergent, then air-dried before reinstallation. Under rated airflow conditions, cleaning and replacement can also be done every 3-4 months.
Medium-efficiency filters: Under rated airflow conditions, they generally need to be replaced every 3-4 months. When the resistance of the filter reaches above 400Pa, the filter must also be replaced. If washable media are used, cleaning is allowed up to two times before a new filter is required.
High-efficiency filters: The service life of terminal high-efficiency filters is generally 1-3 years, but the specific replacement cycle also depends on actual usage.
In summary, the replacement cycle of industrial air conditioning filters should be flexibly adjusted according to specific circumstances to ensure the normal operation of the air conditioning system and indoor air quality. Meanwhile, regular inspections of the filter's condition should be conducted, and if damage, deformation, or ineffective cleaning is found, the filter should be replaced promptly.