CDCLarue P.T.F.E. coated Spun Bond Polyester twist on filters are made from a 100% non-woven polyester material, and coated with a synthetic fluorpolyme coating, lending them high burst strength and resistance to abrasive water, heat, and chemicals. Capable of capturing dust particles as small as .3 micron. Filters are Hepa rated H-13 and are designed to specifically enhance our patented  Pulse-BacŪ Automatic Self-Cleaning Vacuum Control  Technology.

CDCLarue Hepa filters are individually tested, serialized, labeled and certified to meet the IEST RP-CC001.4 Industrial Hepa filtration  standard. Filters are certified to capture 99.97% of dust particles as small as .3 micron.