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At first you should make certain your wanted filter's parameters and properties.You should consider from the following aspects£º
1.dust removal efficiency
2. air permeation
3. easy dust removal
4. long service life
In order to avoid troubles when using please consider thoughtfully before purchase.

Chemistry Character
Properies Polyester Fiber Polyproylene Fiber Polyamide Fiber Polyvinyl Alcohol Fiber
Acid-resisting Strong All Right Weak Non-acid resisting soda
Alkalinity-resisting Weakness-resisting Strong All Right Weakness-resisting
Corrosion-resisting All Right Bad Bad All Right
Electrification Bad All Right Good Normal
Splitting and elongation 30%-40% Better than polyester 18¡æ -45¡æ 15%-25%
Return Ability Very Good A little better than Polyester Very Good Weak
Abrasion Resistance Very Good Good Very Good Good
Heat-resisting 120¡æ 90¡æ 130¡æ a little Contraction 100¡æ a little Contraction
Softening-resisting 230¡æ-240¡æ 140¡æ-150¡æ 180¡æ 200¡æ
Melting-point 255¡æ-265¡æ 165¡æ-170¡æ 210¡æ-215¡æ 220¡æ
   
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