Model: CO1
GB Standard: GB 2890-2022
Material: High-strength ABS, Activated Carbon
1. Classification & Marking
Type: CO + P2 combined filter
Color code: White (CO), Pink (P)
GB Marking: CO (Class 1 for CO gas)
2. Protected Substances
CO gas: Carbon monoxide
Particulates: dust, smoke, mist, aerosols, microorganisms
3. Intended Uses
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Metallurgical industry (coking, ironmaking, heat treatment) with CO gas hazards
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Chemical industry involving CO gas emissions and production
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Carbon and graphite electrode manufacturing with CO gas release
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Internal combustion engine testing with CO gas generation
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Mining and metal smelting scenarios with CO gas exposure
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Petrochemical refineries and maintenance with CO gas risks
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Waste treatment and incineration with CO gas emission
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Laboratory operations involving CO gas use or generation
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All workplaces with CO gas and concurrent particulate hazards
4. Performance (GB)
CO1 (GB 2890-2022): Class 1 protection for carbon monoxide gas, service life ≥20 min (test medium: carbon monoxide)
P2 (GB 2890-2022): Filtration efficiency ≥94% against solid and liquid particulates
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