The invention relates to a cigarette substitute, comprising a hollow tubular element (1) provided with a generator of products to be inhaled (7, 8), with internal heating means (6) for heating the inspired air or at least part of the generator of products to be inhaled, and with a device (8) for triggering the generator of products to be inhaled. It is characterized in that the triggering device comprises an element (8) sensitive to the heat produced by heating means that are situated outside the substitute (1) and are independent of the latter, said heat-sensitive element (8) being made of amaterial that cannot ignite or burn under the conditions of normal use of the substitute (1). It is thus possible to activate the cigarette substitute with the aid of a flame, without thereby causingcombustion of the generator of products to be inhaled.