BOSCH Air Conditioning Filter Element 5717 for Magotan, Passat, Sagitar, Tiguan, Anwan, Golf 6, Sharan, Audi Q3/A3

4-layer filtration for comprehensive protection

Effectively filters up to 10 types of harmful substances

Funnel-shaped deep filtration from coarse to fine

Layers include initial dust particle filtration, electrostatic layer for PM2.5 particles, activated carbon layer for harmful gas absorption and odor removal, and non-woven fabric layer for added strength and shape retention

Ultrafine fibers with strong cleaning ability

Static electricity adsorption technology for efficient filtration of particles as small as 2.5 micrometers, with a 99% efficiency rate for PM2.5 particles (36 times smaller than a human hair)