Vital capacity breathing trainer Choking emergency rescue breathing mask Choking Emergency Device

Material plastic

OPP bag: 2 masks (1 large, 1 small) Weight: 230g

Packing quantity: 42pcs Box size: 55*50*46cm

Travel bag: 2 masks (1 large, 1 small) Weight: 290g Travel bag

Packing quantity: 40pcs

Box size:55*48.5*48cm

Mask: small 10*8*7cm

Large: 13*10.5*8cm