Question: what are the security levels for paper shredders?
Answer: Level 1 GENERAL - LOW SECURITY (DIN 1) ... 
Level 2 INTERNAL - Low to Medium Security (DIN 2) ... 
Level 3 CONFIDENTIAL - Medium Security (DIN 3) ... 
Level 4 SECRET - Medium to High Security (DIN 4) ... 
Level 5 TOP SECRET - High Security (DIN 5) ... 
Level 6 MAXIMUM - Highest Security.