What is the best method for removing odors from a house?

Ventilating the house is the most effective method for removing odors because it allows fresh outdoor air to replace stale, smelly air inside the home. This process helps to dilute and carry away unwanted odors, improving overall air quality. When ventilation is enhanced, it reduces the concentration of lingering smells from cooking, pets, smoke, or mold, creating a fresher living environment.

While filtering the air can help capture some particulates and mitigate certain odors, it may not be sufficient on its own to eliminate strong smells. Mechanical attic ventilation primarily addresses temperature and humidity levels in the attic space rather than actively removing odors from living areas. Humidifying the air could potentially make some odors more pronounced and isn't beneficial for deodorizing the space. Consequently, effective ventilation stands out as the most reliable solution for dealing with unwanted smells in a house.