A paper shredder is a electro mechanical device used to cut paper into chad, typically either strips or fine particles. Government organizations, businesses, and private individuals use shredders to destroy private, confidential, or otherwise sensitive documents. Privacy experts often recommend that individuals shred bills, tax documents, credit card and bank account statements, and other items which could be used by thieves to commit fraud or identity theft.

Shredders are generally available in following categories. personal paper shredder, medium duty duty shredder, heavy duty paper shredder, CD Shredder and type of shredders is cross cut paper shredder, Straight cut paper shredder and Micro cut paper shredder

Din Standards of shredding

There are six globally accepted standards of shredding known as DIN standards. They are as below:

DIN level -1: Shred measurement: straight cut: up to 10mm shred strips

Cross cut : 10mm x 40-80mm

DIN level -2: Shred measurement: straight cut: up to 4 or 6mm shred strips

Cross cut : 8mm x 40-80mm

DIN level -3: Shred measurement: straight cut: up to 2(1.9)mm shred strips

Cross cut : 4 (3.9)mm x20-50mm

DIN level -4: Shred measurement: Cross cut : 2mm x 15mm

DIN level -5: Shred measurement: Cross cut : 1mm x 11mm

DIN level -6: Shred measurement: Cross cut : 1mm x 4-5mm