. 2019 Oct 28;63(1):3–7. doi: 10.3345/kjp.2019.00626

Table 1.

Recommended flow settings and cannula sizes for high-flow nasal cannula therapy in pediatric patients

Age	Body weight (kg)	Flow range (L/min)^a)	Manufacturer-recommended cannula size
Age	Body weight (kg)	Flow range (L/min)^a)	Fischer & Paykel^b)	Vapotherm
≤1 Month	<4	5–8	S, M	Neonatal, infant
1 Month–1 year	4–10	8–20	M, L	Pediatric small
1–6 Years	10–20	12–25	L, XL	Pediatric small, pediatric (adult small)
6–12 Years	20–40	20–30	XL, small	Pediatric (adult small),
12–18 Years	>40 kg	25–50	Small, medium	Pediatric (adult small), adult

OD, outer diameter.

^a)

Allowed flow range might differ from the manufacturer’s recommendations.

^b)

XS, S, M, L, and XL Optiflow Junior 2; Small and Medium Optiflow Plus.