Table 1.

Contribution of phases in the life cycle of different inhaler devices to their individual carbon footprint (net kg CO₂e/per pack) and annual carbon footprints of each device

	RELVAR ELLIPTA 92/22 µg	SERETIDE ACCUHALER 50/500 µg	VENTOLIN ACCUHALER 200 µg	SERETIDE EVOHALER 25/250 µg	VENTOLIN EVOHALER 100 µg
Active pharmaceutical ingredients	0.02	0.25	0.02	0.08	0.10
Manufacturing	0.73	0.46	0.42	2.12	1.11
Distribution	0.03	0.06	0.02	0.03	0.02
User phase	0.00	0.12	0.12	10.68	19.39
End of life	0.03	0.01	0.01	6.08	7.38
Net kg CO2e/pack	0.80	0.90	0.60	19.00	28.00
Net kg CO2e/year	9.5	11.0	7.3*	234.0	205.0*

*If using on average two doses per day.