Asked by mrspgurg April 21, 2021 1 Answer AnswerAs with all our other portable air conditioners, the LG 8,000 BTU Smart Wi-Fi Enabled Window Air Conditioner, Model # LW8017ERSM has white Expanded Polystrene (EPS) air ducts that is part of the unit and should not be removed. When the nutrients of the dirt are combined with the humidity and darkness inside of the housing of the air conditioner and you have the ingredients of mold production. Condensation from the cooling coils inside of the air conditioner is meant to drip freely into the internal water collection tank that has to be emptied when it gets full. The air filters should be cleaned every two weeks; depending on indoor air quality, more frequent cleaning may be needed. Mold needs nutrients, and without they’re being something like dirt on the Styrofoam, there is no way that mold could grow on Styrofoam.