| 摘要 |
The invention relates to a prevention means (1) characterised in that it takes the form of a trapping and retaining device (2) that can receive fine and/or ultrafine particles at a source (3) emitting fine and/or ultrafine particles, said trapping and retaining device (2) being a single- and/or limited-use device that can be used to carry out limited and localised standards-compliance, repair or maintenance work. |
