It will depend on the intensity of the odor and the volume of air, but as a reference:
The 33 gram format: Removes odor from spaces up to 50 m2.
The 200 gram format: Eliminates odor from spaces up to 250m2.
The 800 gram format: Eliminates odor from spaces up to 800 m2.
The 200 and 800 gram formats need forced air to cover these superficies (place them inside the air extraction/ventilation ducts). (Placing them inside air extraction/ventilation ducts)