G4 Pre Filter Cotton (250g Green And White)

*The filter cotton is made of imported polyester fiber filter material.
*It is of low resistance, can take a large amount of air, has large capacity of dust accommodation, is of simple structure and is easy for installation and cheap in price. It is non-toxic, odorless, temperature withstanding and moisture withstanding and resistant to acid, alkaline and organic solvents. The filter is simple in structure, reliable in sealing, easy for filter materials and it is the Grade 1 filtration material for air purification systems.
*It is mainly used to collect the larger dust particles in the air.