Please select below items and press theComparebutton.

Average no. of running days per month:


Average running hours per day:


Total flow rate(Usually 50mL/min) :


Number of units:

Carrier Gas Types:

Current Factor Settings

Note: To specify a user-specified factor value for calculations, click the [Change Factor] button.

CO2 emission factor0.561kg-CO2/kWh

Unit cost of electricity0.15US$/kWh

Price of high-purity He gas500US$/7m3