How much does it cost to run a 45w vornado circulation fan?

To calculate the cost of running a 45W Vornado circulation fan, you first need to determine the energy consumed in kilowatt-hours (kWh). If the fan operates for 8 hours a day, it uses 0.045 kW * 8 hours = 0.36 kWh daily. At an average electricity rate of about $0.13 per kWh, running the fan would cost approximately $0.047 per day, or about $1.41 per month. Actual costs may vary based on local electricity rates and usage patterns.