Until recently, we had a BlueAir 211+ in each bedroom.
I was interested to understand the total annual cost of running these air purifiers. While the HouseFresh review says it’s about $275 per year, I ran the numbers myself, for three reasons:
Their calculation is based on an electricity price of 17.7¢ per kilowatt-hour, whereas in British Columbia, the price is only 14.08¢.
Their calculation assumes the air purifier will run the entire year at full blast (57.2 watts), but I only turn them on to full blast at night, and then turn them down each morning to the lowest setting (27.6 watts). This means I run the unit on high for half the day and on low for the other half, averaging 42.4 watts.
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