Device and method for nasal inhalation

An inhalation device comprising:

• a body;
• at least one support removably received in the body, the support containing a product including at least one active substance, the support being able to release, in the form of emanations, a volatile phase of the at least one active substance;
• and
• attachment elements permitting attachment of the device to at least one point situated near the nostrils to permit nasal inhalation of the emanations,
• the at least one support and the attachment elements being configured so that the emanations when leaving the support are not aimed directly towards the nostrils and travel a distance before coming in contact with the nostrils or the nasal mucosa,
• wherein the body is made of a material impervious to the emanations, the attachment elements being at least one portion of the body,
• wherein the body has a recess capable of receiving the support and at least one opening to allow the emanations to pass from the recess,
• wherein the body includes a first face having a first opening formed therein and a second face, opposite to the first face, having a second opening formed therein, and
• wherein the support includes at least first and second superposed layers, the first layer having a first active substance capable of diffusing through the first opening and the second layer having a second active substance capable of diffusing through the second opening.