Table 4.

Costs of the NHF Device Assuming Fulltime Use for 12 Months

Item	Annual Cost		Comment
	Patient	DHB
Capital costa		$540	Includes setup and home water chamber
Electricity	$66		0.13kWh/d, 5.6h, 365d, 25c/kWh
Consumablesb		$736	Air filters, heated breathing tube, nasal cannula
Total running costs	$66	$736

Note: ^aCapital cost amortized over 5 years at an interest rate of 5% per annum to give $594. ^b6 air filters (900PT913); 6 heated breathing tubes (900PT560); 12 nasal cannulae (Optiflow+E).

Abbreviation: DHB, District Health Board.