sticky mat

Sticky mats (tacky mats) are adhesive floor mats placed at cleanroom entrances to remove particles from shoes and cart wheels. **How they work**: Layered adhesive sheets trap dirt and particles from whatever walks across them. Top sheet peeled off when dirty to expose fresh layer. **Placement**: Before gowning room entry, at zone transitions, near tool areas. Critical contamination control points. **Layers**: Typically 30-60 peel-off layers per mat. Numbers help track usage. **Effectiveness**: Removes large particles from shoe soles. Doesnt replace but complements shoe covers and gowning. **Limitations**: Cannot remove all particles, shoes still need covers. Works best for larger debris. **Maintenance**: Replace mats when layers depleted or adhesive weakened. Track replacement schedule. **Frame**: Often surrounded by frame to create complete stepping surface. Ensures contact. **Cost**: Relatively inexpensive compared to other contamination controls. Easy to implement. **Cart wheels**: Good for trapping particles from wheeled equipment entering cleanroom.