Hand Drying Footprint Calculator: Paper Towels vs Air Dryers

Your details

Select the drying method used in your facility or home.
Total number of times hands are dried across all users in a day.
uses/day
Carbon intensity of your local electricity grid. US average is 0.386 kg CO2/kWh. Look up your regional value from your utility or EPA eGRID.
kg CO2/kWh
Pick a second method to compare directly against your primary choice.
Annual footprintHigh impact
419.8kg CO2e/yr

Total carbon dioxide equivalent emitted per year by the selected method

CO2e per drying event23g CO2e
Comparison method annual footprint182.5kg CO2e/yr
Annual saving vs comparison-237.3kg CO2e/yr
Trees needed to offset20trees/yr
Saving vs comparison-1.3%
Selected method419.8
Comparison method182.5

419.8 kg CO2e per year from hand drying.

  • At 50 drying events per day, a conventional warm-air dryer emits about 419.8 kg of CO2 equivalent per year.
  • You would need 20.0 trees growing for a full year to absorb that footprint.
  • Compared to virgin paper towels, this method adds approximately 237.3 kg CO2e per year.

Next stepFor electric dryers, switching to a greener electricity tariff (or grid with more renewables) is the single biggest lever: cutting grid intensity by half cuts the dryer footprint by roughly 40 percent.

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