What should I set my dehumidifier at in summer to ensure optimal humidity levels in my home? As the temperatures rise, maintaining the right balance of moisture becomes crucial, especially in spaces like basements or overly humid areas. Is there a specific setting that experts recommend for the summer months, particularly in relation to the average relative humidity we experience during this season? How do factors like outdoor humidity levels and indoor temperature influence the effectiveness of the dehumidifier? Could improperly adjusting these settings lead to either mold development or excessive dryness, both of which can be detrimental to comfort and health? Moreover, what is the scientific rationale behind choosing a particular percentage, such as 30%, 40%, or even 50%? Are there additional considerations such as the size of the space being dehumidified or the frequency of use that I should take into account when determining the ideal setting?