EN149规定口罩可用于非油性及油性用途，把口罩分为FFP1、FFP2及FFP3三个等级
Limit info限量要求:
FFP1Filterseparates80%afairborneparticles.<22%
FFP2Filterseparates94%afairborneparticles.<8%
FFP3Filterseparates99%afairborneparticles.<2%
EN149规定在小包装上（如如內盒，吊卡，紙卡）均需增加贮存环境的标示，建议存储环境的温度、湿度及产品的有效期。
Test info测试内容：
| BS EN 149: Respiratory protective devices – Filtering half masks to protect against particles – requirements, testing marking |
| This International Standard specifies minimum requirements for filtering half masks as respiratory protective devices to protect against particles for escape purposes. |
| Material (Clause 7.5) |
| Cleaning and disinfecting (Clause 7.6) |
| Practical performance (Clause 7.7) |
| Finish of Parts (Clause 7.8) |
| Total Inward Leakage (Clause 7.9.1) |
| Penetration of filter material : Sodium Chloride (Clause 7.9.2) |
| Penetration of filter material : Paraffin Oil (Clause 7.9.2) |
| Compatibility with skin (Clause 7.10) |
| Flammability (Clause 7.11) |
| Carbon dioxide content of the inhalation air (Clause 7.12) |
| Head Harness(Clause 7.13) |
| Field of vision (Clause 7.14) |
| Exhalation Valve (Clause 7.15) |
| Breathing resistance (Clause 7.16) |
| Clogging (Clause 7.17) |
| Demountable Parts (Clause 7.18) |
| Marking |
| Information to be supplied by the manufacturer |
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