Primary paper frame filter:

The outer frame is made of moisture-proof and water-resistant raw wood fiber paperboard, which is light, easy to install, and has a smooth and beautiful appearance; the internal filter material adopts a combined inner frame compression design or bonding technology to ensure the sealing of the filter and prevent leakage; the internal metal parts are sprayed or galvanized to prevent metal parts from rusting. The air outlet surface of the non-woven filter material is polished to prevent the non-woven fibers from breaking and scattering and causing secondary pollution; the filter material of the metal outer frame product is easy to disassemble and replace, can be washed, and the outer frame can be reused, which can save the operating costs of the air conditioner; the filter has low initial resistance and large dust holding capacity.

Application:
It is widely used, most commonly used in program-controlled switches and constant temperature and humidity air conditioners for computer rooms, as well as central fresh air units and ventilation systems. It is used for pre-filtration of air compressors, return air filtration in clean rooms, pre-filtration of high-efficiency filtration devices, etc.

Principle:
The filter material is folded into high-strength cardboard, the windward area is increased, and the dust particles in the incoming air are effectively blocked between the folds by the filter material. Clean air flows out evenly from the other side. Therefore, the airflow through the filter is smooth and uniform. Depending on the filter material, the particle diameter of the particles it intercepts varies from 0.5um to 5um. The filtration efficiency is also different.

Structure:
The outer frame of the disposable paper frame filter is generally divided into general cardboard frame and high-strength cut cardboard. The filter element is a pleated fiber filter material lined with a single-sided metal wire mesh. Beautiful appearance. Strong and durable structure. The general cardboard outer frame is used to manufacture non-standard filter meshes, which can be used for the production of filter meshes of any specifications. It is high-strength and not easy to deform. High-strength cardboard is used to manufacture standard filter meshes, which are characterized by high specification accuracy, beautiful appearance and low cost. If imported surface fiber or synthetic fiber filter material is used, its various performance indicators can reach or exceed similar imported filter mesh products.

Filter material:
The filter material is folded into a high-strength cardboard to increase the windward area. The dust particles in the incoming air are effectively blocked between the pleats by the filter material. Clean air flows out evenly from the other side, so the airflow through the filter is smooth and even. Depending on the filter material, the particle size it blocks varies from 0.5μm to 5μm, and the filtration efficiency is also different.
The filter material can be made of non-woven fabric, fluffy glass fiber felt, plastic mesh or metal wire mesh according to customer needs. The most commonly used are non-woven fabrics and glass fibers. The efficiency can reach primary or medium efficiency.

Performance parameters: