In an emergency, saves the artificial respiration life. But many potential first responders who fear direct contact with the victim. This hesitation can be fatal. That's why it makes sense dabeizuhaben such a breathing mask.
As can be seen in the product photo, the mask is packed in a sturdy plastic box. After opening the box, the folded mask is everted with a handle and put the victims through the mouth and nose. The air-filled bead on the edge provides a fairly airtight cover.
On top of the screen contains a replaceable one-way valve (check valve) with a filter.
Of course, this mask is significantly greater than a breathing cloth, but in the Box also much safer packed.
Such a mask should always have - and hopefully never need.