What is the general service life of a filter without separators?

The service life of the filter without separators also has no fixed standard. It is usually affected by factors such as the characteristics of the filter material, the usage environment, and the operating parameters. Generally, it ranges from 6 months to 2 years. The specific differences and features are as follows:
1. Core influencing factors
Filter material and dust holding capacity
The filter without separators uses thin and high-efficiency filter materials (such as PP, PET, or superfine glass fiber), and the pleats are fixed by hot melt adhesive. The unfolded area of the filter material is relatively small, and the thickness of the filter material is thin. Therefore, the dust holding capacity (the amount of dust that can be held per unit area) is usually lower than that of the filter with separators. This results in a faster dust accumulation rate and a relatively shorter lifespan for it in the same dusty environment.
Dust content of the operating environment
If it is used in a low-dust clean environment (such as terminal filtration in Class 100 cleanrooms or hospital operating rooms), the dust concentration in the air is low, the load on the filter is small, and its service life can be extended to 1-2 years.
If used in scenarios with slightly higher dust content (such as ordinary industrial workshops or systems with insufficient pre-filtration), dust can quickly clog the filter material, and its lifespan may be shortened to 3 to 6 months.
Operating air volume and air velocity
The pleat spacing of the filter without separators is separated by hot melt adhesive and is relatively dense. If the actual operating air volume exceeds the design value, the excessively high wind speed will increase the impact force of the airflow on the filter material, raise the dust penetration rate, and accelerate the clogging of the filter material, further shortening its service life.
2. The difference in lifespan compared with filters with separators
Under the same usage conditions, the lifespan of a filter without separators is typically 20% to 50% shorter than that of a filter with separators.
For instance, in an electronic cleanroom (a low-dust environment), the lifespan of a filter with separators may reach 1.5 to 2 years, while that of a filter without separators may be 1 to 1.5 years.
In a slightly industrial pollution environment, the lifespan of a filter with separators may be 8 to 12 months, while that of a filter without separators may only be 4 to 6 months.
Summary
The lifespan of the filter without separators is limited by its structural design and the characteristics of the filter material. It is more suitable for scenarios with low dust content and high requirements for space compactness. In practical applications, the timing of replacement should be determined by taking into account the environmental dust content, the effect of the pre-filtration, and resistance monitoring (such as when the pressure difference reaches twice the initial value), to balance the filtration efficiency and usage cost.