These Scan Twin Half Mask P3R Particle Filter Cartridges are suitable for use with the Scan SCAPPERESPMO 1/2 mask respirator and SCAPPERESPFF full face respirator. Used to protect against particles such as dust, smoke and aerosols. They filter out up to 99.95% of contaminants. The glass fibre and polyporpylene material ensure a high performance and reusable filter. Supplied as a pack of 2 filter cartridges. Conforms to EN 143:2021.