A method for deodorizing air at or near a toilet is provided. The method comprises detecting pressure on the toilet seat directing ah from near or inside the toilet bowl through a filter at a first rate if pressure on the toilet seat is detected detecting presence of H2S directing air from near or inside the toilet bowl through the filter at a second rate if H2S is detected, the second rate being higher than the first rate detecting removal of pressure from the toilet seat and ceasing the direction of air through the filter after a predetermined period of time if no H2S is detected or if removal of pressure on the toilet seat is detected. A system and a device relating to the method are also provided.
