Capable of evaporating up to 45L of water per day and handling spaces of as much as 1000m³, the PCMH45 is suitable for household and office use as well as public spaces such as museums and galleries. There are four humidistat settings to reliably control relative humidity: 30% RH, 45% RH, 60% RH, and continuous. The fan has three settings: quiet, medium or full power.