Abstract: A nasal rinsing cap suitable for standard water bottle is disclosed. The body portion of the device can be attached to the top of the bottle. It has a cylindrical void matching the threaded portion of the bottle and a one-way fluid valve attached to another void extending from the cylindrical void and through the body portion. The body portion also includes a one-way air valve allowing the entry of air into the bottle. A top portion is removably or openably attached to the body portion. It has a tubular opening starting near the body portion and extending through the top portion. The top portion is configured so that it has a tip to be contacted with the user's nasal cavities. The top portion also has a pressure zone for closing the fluid valve by applying a pressure on it.

Abstract: Cap for bottle for rinsing nose, suitable for standard water bottle. The device comprises a body portion to be attached to the top of the bottle, comprising a cylindrical void for the threaded portion of the bottle, and one-way fluid valve attached to a void extending from the cylindrical void through the body portion. The body portion also includes one-way air valve to allow the entry of air into the bottle because of the negative pressure in it. A top portion is removably or openably attached to the body portion, comprising tubular opening starting near the body portion and extending through the top portion, wherein the top portion is configured so that it has a tip to be contacted with the user's nasal cavities and the top portion has as pressure zone for closing the fluid fluid valve by applying a pressure to said pressure zone.