Przybysz ERA extraction fans are the best solution to keep rooms and offices clean, fresh and humidity-free. It will help to remove humid air in order to bring about a comfortable environment for interiors. All models are equipped with anti-insect that is drawn into the motor of the fan. In this way, all insects (especially mosquitoes) and other unwanted geusts will not be able to enter into your home through duct system. Specifications: - Outer diameter (inner duct diameter): 100mm; - Air flow efficiency: 80m3/h; - White ABS plastic; - All models equipped with anti-insect net; - Power: 230VAC, 50Hz connected with standard terminal block. Versions: - Standard switching: power supply to be hardwired to fan; - Standard + Pull Cord: possibly of turning off/on with additional pull cord; - Delay Timer: fan will run for adjustable amount of time after it is being switched off; - Humidity Sensor + Delay Timer: fan will run for adjustable amount of time after it is being switched off + additionally automatically switch on/off depends on set humidity level.