What are the raw materials for HEPA air filters? What kind of filter cotton is commonly used?
What are the raw materials for HEPA air filters? What is the material of filter cotton commonly used? The following by Jiangsu air filter custom factory to introduce to you several types of commonly used HEPA air filter cotton raw materials. We usually divide them into three categories:
What kinds of air filter materials are divided into?
First, synthetic fiber filter cotton:
Synthetic fiber filter cotton is a new type of filter material, which has low resistance, light weight, large capacity and high cost performance. Polyester fiber as the main raw material, with good corrosion resistance, can be acid and alkali resistance to a certain extent.
What kinds of air filter materials are divided into?
Two, non-woven filter cotton:
Non-woven fabric is one of the most mature and stable materials. It IS MADE of melt blowing, needling, spunbonding and other processes, with large dust tolerance, strong moisture resistance, relatively long service life, economic and durable. Non-woven fabrics are also used as raw materials for earlier air filters. In recent years, due to the continuous improvement of technology, the appearance of composite non-woven fabric has greatly improved its filtration performance, and has been widely used in places with relatively high air cleanliness requirements.
What kinds of air filter materials are divided into?
Three, glass fiber filter cotton:
Glass fiber filter cotton is mainly made of various thickness, length and length of glass fiber through a special process. Glass fiber with its stable performance, high temperature resistance, large capacity, long service life and other characteristics in the industry ranks of leaders. It is very popular in some special places. But the transport of glass fiber should be particularly careful, and its price is relatively expensive. Household air filtration products can choose cost-effective filtration products.
Customers have different requirements on the air cleanliness of the use place, so they need to choose different levels of air filters with different cost performance ratios. While considering the filtration efficiency, we should also comprehensively consider the subsequent cost of replacing the air filter and the stability of the filter screen.
What are the main HEPA air filter materials?
1. Glass fiber filters (MERV 1-4) : Inexpensive and disposable, these filters trap 80% of particles 50 microns or larger and block 25% of particles in the 3 to 10 microns range. Many manufacturers
2. recommend these filters as minimal protection simply because of dust and dirt on fan motors, heat exchangers, and other surfaces. They filter out large particles to protect furnace components, provide maximum airflow but do not filter out small and harmful pollutants that affect your health.
2. Disposable pleated paper or polyester filters (5 to 8 MERV) : These medium sized filters can capture 80 to 95% of particles 5 microns or larger. They cost four times more than fiberglass filters, but filter better.
3. Electrostatic filters (2 to 10 MERV) : These filters use self-charging fibers to attract particles in the air. Quality varies by cost, with better quality products lasting up to eight years. These filters must be completely dried after washing to avoid mold growth, so a convenient trick is to buy two and rotate them for cleaning.
4, disposable pleated high MERV filter (11 to 13 MERV) : High efficiency filter can capture 0.3 micron particles, such as bacteria and some viruses. The 2 – to 5-inch thick models of these filters fit into box-like enclosures mounted on air processors and can be used for up to a year. Regular changes in filter design may increase prices.
5. High Efficiency particulate capture (HEPA) filters: These are the real high end of filtration, able to filter out particles up to 0.3 microns. HEPA filters greatly limit airflow and are only compatible with compatible systems.
