The ELIPSE P3 R carries the highest classification for a particulate filter.
Dräger X-plore 5500 Full Face Mask Respirator + 2x Reusable P3 R dust filters Set for Construction, Woodworking, DIY and Work - Complies with CE EN136 + EN143 : Amazon.co.uk: DIY & Tools
Trend Air Stealth P3 Dust Mask Respirator (Medium/Large) with Replaceable HEPAC Filters, Mask for Building & Construction Work, STEALTH/ML : Amazon.co.uk: DIY & Tools