ESD swabs with a surface resistance of 1 × 106 Ω ≤ Rs ≤ 1 × 1010 Ω.
The swabs are made of polyurethane foam with 100 ppi, or of polyester. The head is fastened to the stem without glue. The swabs are suitable for a wide range of applications, such as cleaning lenses, sensors, semiconductors and microchips; they are also fit for use in cleanrooms.