ʻO EN 149 kahi kūlana ʻEulopa no ka hoʻāʻo ʻana a me ka hōʻailona ʻana i nā koi no ka kānana ʻana i ka hapalua masks.Uhi ia mau masks i ka ihu, ka waha a me ka ʻauwae a loaʻa paha nā kiwi inhalation a/a i ʻole exhalation.ʻO EN 149 ka wehewehe ʻana i ʻekolu mau papa o ia mau mea huna hapa hapa, i kapa ʻia ʻo FFP1, FFP2 a me FFP3, (kahi i kū ai ʻo FFP no ka kānana ...
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