The Flexi filters suitable for the masks Advantage protect against toxic gases, vapours and particles.This is a highly innovative particle filter.With its flat design, hardly noticeable breathing resistance and light weight, it offers unsurpassed comfort. The FLEXIfilter is approved for protection against dust according to EN 143. It is available in the filter classes P2, P3, P2 OR and P3 OR [Odour Removal]. The filter material is assembled according to class and performance.To eliminate unpleasant odours, thin layers of charcoal material are added. These versions are tested for 5 times the ozone threshold limit value for 8 hours. The FLEXIfilter is suitable for applications where particle aerosols and odours occur. Since the filters fit well under a welder