PU round filter

According to the filtration principle, air filters can be divided into several types: filtration type, centrifugal type, oil bath type, and composite type. The commonly used air filters in engines include inertia oil bath air filters, paper dry air filters, polyurethane filter air filters, and other types.
The inertia oil bath air filter has undergone three stages of filtration: inertia filtration, oil bath filtration, and filtration filtration. The latter two types of air filters are mainly filtered through the filter element filtration. Inertia oil bath air filters have the advantages of low intake resistance, adaptability to dusty and sandy working environments, and long service life. They were previously used on various models of car and tractor engines.
However, this type of air filter has low filtration efficiency, high weight, high cost, and inconvenient maintenance, and has gradually been phased out in automotive engines.
The filter element of the paper dry air filter is made of resin treated microporous filter paper. The filter paper is porous, loose, folded, and has a certain mechanical strength and water resistance. It has the advantages of high filtration efficiency, simple structure, light weight, low cost, and convenient maintenance, making it a widely used automotive air filter.
The polyurethane filter element of the air filter is made of soft, porous, sponge like polyurethane with strong adsorption capacity. This type of air filter has the advantages of paper dry air filters, but has low mechanical strength and is widely used in car engines. The disadvantage of the latter two types of air filters is their short service life and their unreliable operation in harsh environmental conditions.
Various air filters have their own advantages and disadvantages, but inevitably there is a contradiction between the intake volume and filtration efficiency. With the in-depth research on air filters, the requirements for air filters are also increasing. Some new types of air filters have emerged, such as fiber filter air filters, composite filter material air filters, silencing air filters, constant temperature air filters, etc., to meet the needs of engine operation.

The PU round filter boasts excellent chemical and heat resistance, making it suitable for environments with high moisture levels or varying temperatures. It is also recyclable and can be cleaned easily, reducing maintenance costs and making it an eco-friendly choice for conscious consumers.

Not only does the PU round filter outperform traditional fiberglass filters due to its electrostatic properties, but it also eliminates the risk of fiber shedding often associated with those alternatives. This ensures not just clean air, but also a safer breathing environment for allergy sufferers and those with respiratory sensitivities.

In summary, the PU round filter combines state-of-the-art filtration capabilities with a user-friendly, low-maintenance design. It is the ideal solution for those seeking to improve indoor air quality, reduce operating costs, and enjoy a more healthful living or working environment. Whether you're looking to filter the air in a compact apartment, a large office space, or an industrial facility, the PU round filter is up to the task, of providing peace of mind with every breath.