Security Levels –

Material particle surface ≤ 800 mm2 or strip width ≤ 6 mm. Strip length not determined.Generally all strip cut shredders fall in this category
Material particle surface ≤ 320 mm2 (4 x 80 mm particles, for example) or strip width ≤ 2 mm. Strip length not determined.
Material particle surface ≤ 160 mm2 and for regular particles: strip width ≤ 6 mm (4 x 40 mm particles, for example).
Material particle surface ≤ 30 mm2 and for regular particles: strip width ≤ 2 mm (2 x 15 mm particles, for example).
Material particle surface ≤ 10 mm2 and for regular particles: strip width ≤ 1 mm (0.8 x 12 mm particles, for example).
Material particle surface ≤ 5 mm2 and for regular particles: strip width ≤ 1 mm (.8 x 5 mm particles, for example).