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Respiratory protection Sperian
Protection against gas/fumes:
Class 1: for gas contents of less than 0.1% by volume
Class 2: for gas contents of between 0.1% and 0.5% by volume
Class 3: for gas contents of between 0.5% and 1% by volume

Protection against particles, dust and aerosols:
Class 1: (P1 or FFP1) to protect against large solid particles with no specific toxicity (calcium carbonate).
Class 2: (P2 or FFP2) against solid aerosols and/or liquids indicated as hazardous or irritants (silicone – sodium carbonate)
Class 3: (P3 or FFP3) against solid aerosols and/or toxic liquids (beryllium – nickel – uranium- exotic woods)
 
 
 
 
 
 
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