Respiratory protective devices are protective devices intended to protect against hazardous substances in the aeriform state such as particles, vapours and gases by means of the filtering mechanism. These devices, which partially or completely cover the face, are made of filtering material or consist of a reusable structure fitted with replaceable filters.
The EN 149 standard specifies the minimum requirements for filtering half masks for protection of the respiratory tract against particles, except for those intended for escape. Aerosols and fine dust particles are among the most insidious health risks at the workplace, as they are practically invisible in the air we breathe. 
Filtering half masks for protection against particles provide protection against these hazards. Divided into three classes, FFP1, FFP2, FFP3, they protect against aerosols, smoke and fine aqueous and oily dust. FFP1 half-face masks have an 80% filtering capacity; FFP2 half-face masks have a 94% filtering capacity; FFP3 half-face masks have a 99% filtering capacity.
The devices subject to the standard can be single use, marked “NR”, or reusable, marked “R”. 
The device is marked with the letter “D” have undergone the Dolomite dust clogging test.
EN 149
Products for this standard
Mesh respirator FFP2 NR D w/v
FA1303
                                                    
                                                        
                        Mesh respirator FFP2 NR D carb w/v
FA1304
                                                    
                                                        
                        Premium respirator FFP3 NR D w/valve
FA1445
                                                    
                                                        
                        Mesh respirator FFP3 NR D w/v
FA1446
                                                    
                                                        
                        High-eff respirator FFP3 NR carbon w/v
FA1441
                                                    
                                                        
                        High-eff respirator FFP3 NR w/valve
FA1442
                                                    
                                                        
                        High-eff respirator FFP2NR carbon w/v
FA1308
                                                    
                                                        
                        RESPIRATOR SH1730V FFP3 NR D W/V
FA1444
                                                    
                                                        
                        RESPIRATOR HY9922 FFP2 NR D W/V
FA1305
                                                    
                                                        
                        High-eff foldable respirator FFP3NRD w/v
FA1417
                                                    
                                                        
                        High-eff foldable resp FFP3NRD carb w/v
FA1418
                                                    
                                                        
                        FILTERSPEC® respirator pro FFP3 v
FA1419
                                                    
                                                        
                        Premium respirator FFP2 NR D
FA1316
                                                    
                                                        
                        Premium respirator FFP2 NR D w/valve
FA1321
                                                    
                                                        
                        High-eff respirator FFP2 NR D carbon w/v
FA1327
                                                    
                                                        
                        Premium respirator FFP2 NR D carbon w/v
FA1328
                                                    
                                                        
                        High-eff foldable respirator FFP2NRD w/v
FA1329
                                                    
                                                        
                        Anti-odour respirator FFP2
FA1332