- Portwest P351 FFP3 Valved Dolomite Fold Flat Respirator White - BOX OF 20Special Price £30.40 £36.48Climax 1730 FFP3 NR Half Face Filtering Protection Mask Box of 12Special Price £19.95 £23.94Moldex 5430 - Compact Mask Semi Disposable P3 Half Mask RespiratorSpecial Price £26.46 £31.75