... against chemical hazards, micro-organisms (bacteria, fungi), water and airtight, with no danger of electrical or thermal risks ... necessary. Instructions for storage: Keep in its original packing away from light and humidity. Instructions for cleaning / maintenance: No ... 89/686, notably regarding ergonomics, innocuousness, comfort, ventilation and flexibility, with EN420:2003 (dexterity 5), EN388:2003 ( ...