Q1: Is this wall-mounted fan waterproof?A1: This model is IP44 rated, meaning it is water splashes-resistant and can be cleaned securily. However, it should not be used in fully open outdoor areas. If installed in a semi-open space, we recommend adding a protective barrier to avoid rainwater from entering and damaging the unit.Q2: Is the fan loud during operation?A2: At its lowest speed setting, the fan produces a noise level of 55 dB(A) when measured at close range. For a quieter experience, we recommend using the fan in open or well-ventilated areas to reduce perceived noise.Q3: What type of wall can the fan be mounted on?A3: The fan must be installed on a solid concrete wall. It is not suitable for mounting on wooden patios or drywall.