Abstract: The present invention relates to dust-free preparations dispersible in cold water. These preparations consist of particles comprising water-insoluble or only sparingly water-soluble active substance(s), said particles being coated with one or more layers, the outermost layer comprising as principal component one or more hydrophobic powdering agents on which at least one dispersant is absorbed. The invention also relates to a process for producing these particles and to the use thereof in food supplements, foodstuffs, animal feeds, personal-care products, and medicaments.

Abstract: A respiratory half mask having a respiratory half mask body with a basic part for covering the mouth of the wearer and two side fields, which are situated opposite one another and are fixed in a folded-over position to the basic part for receiving a head holding portion on the wearer upon forming head holding portion receptacles. The respiratory half mask body includes a nose part fixedly connected to the basic part and foldable between a nose part wearing position and a nose part storing position and including at least two nose part part-recesses. The respiratory half mask body includes a chin part fixedly connected to the basic part and foldable between a chin part wearing position and a chin part storing position and comprising chin part part-recesses. The part-recesses serve for preventing the folded-over side fields fixing to the chin part and nose part upon fixing the side fields to the basic part.

Abstract: A breathing mask for filtering air exhaled by a wearer of the breathing mask. The breathing mask includes a mask main body for covering the nose and mouth of the wearer, and at least one breathing valve arrangement which is arranged on the mask main body and includes a valve seat body and a valve membrane that is movable between a release position and a closed position, which valve membrane frees a breathing opening in the release position, closes the breathing opening in the closed position, and includes a reinforcement structure with at least one oblique reinforcement body extending obliquely with respect to a central plane of the valve membrane.

Abstract: A respiratory half mask having a respiratory half mask body with a basic part for covering the mouth of the wearer and two side fields, which are situated opposite one another and are fixed in a folded-over position to the basic part for receiving a head holding portion on the wearer upon forming head holding portion receptacles. The respiratory half mask body includes a nose part fixedly connected to the basic part and foldable between a nose part wearing position and a nose part storing position and including at least two nose part part-recesses. The respiratory half mask body includes a chin part fixedly connected to the basic part and foldable between a chin part wearing position and a chin part storing position and comprising chin part part-recesses. The part-recesses serve for preventing the folded-over side fields fixing to the chin part and nose part upon fixing the side fields to the basic part.