Are different types of blast shower filter replacement cycles the same?

Different types of explosion-proof air shower filter replacement cycles are not the same, the following is a specific introduction:
Primary filter
Filter principle: Mainly through the physical interception, filter out the air of large dust particles, hair, fiber, and other impurities, usually using coarse, medium porous fiber filter material, relying on the staggered arrangement of fibers to form a filter layer, so that dust and other impurities are intercepted on the surface of the filter material.
Replacement cycle: generally 3-6 months. In dusty environments, such as mines, cement plants, etc., it may need to be replaced in about 3 months; In a relatively clean environment, such as the auxiliary area of some electronic chip production workshops, if the air shower is not used frequently, it may be replaced in about 6 months.
Medium effect filter
Filter principle: The use of filter materials finer than the primary filter, such as glass fiber, and synthetic fiber, in addition to physical interception, but also the use of electrostatic adsorption and other effects, to capture the small size of the dust particles in the air, to further improve the cleanliness of the air.
Replacement cycle: Usually 6-12 months. In the ordinary industrial production environment, if the air shower is normally used, it will be replaced in about 9 months; However, in some places with high requirements for air cleanliness and a certain amount of medium particle size dust in the environment, such as optical instrument production workshops, it may need to be replaced in 6 months.
High-efficiency filter
Filter principle: Generally use ultra-fine glass fiber filter paper or synthetic fiber filter paper and other high-efficiency filter materials, the fiber diameter is very small, and the filter aperture can reach 0.1-0.3 microns or even smaller, mainly through diffusion, interception, inertial collision, and other mechanisms, the small dust particles and bacteria in the air are highly efficient filtration. Can filter more than 99.97% of 0.3 micron particle size particles.
Replacement cycle: Usually 1-2 years. In places such as sterile production areas of pharmaceutical workshops with high cleanliness requirements and lithography workshops of integrated circuit manufacturing, due to extremely strict air quality requirements, it may need to be replaced in about 1 year; In some places such as laboratories with relatively low cleanliness requirements, if the frequency of use is not high and the environment is relatively good, it may be replaced in about 2 years.
In addition, activated carbon filters are generally used to absorb odors and harmful gases in the air, and the replacement cycle is usually 6-12 months, mainly depending on the concentration and adsorption of the adsorbed substance.