Pediatric Ventilation Bag Size by Weight

Ventilator Bag · Equipment

Notes

0.5–3 liters; depending on the manufacturer

Ventilator Bag: value for each weight
Weight	Age (estimate)	Value
2 kg	preterm	0.5 to 1 liters
3 kg	newborn	0.5 to 1 liters
4 kg	1 mo	0.5 to 1 liters
5 kg	2 mo	0.5 to 1 liters
6 kg	4 mo	1 to 1.5 liters
7 kg	6 mo	1 to 1.5 liters
8 kg	8 mo	1 to 1.5 liters
9 kg	10 mo	1 to 1.5 liters
10 kg	1 y	1 to 1.5 liters
11 kg	1 y 6 mo	1 to 1.5 liters
12 kg	2 y	1 to 1.5 liters
13 kg	2 y 4 mo	1 to 1.5 liters
14 kg	2 y 8 mo	1 to 1.5 liters
15 kg	3 y	1.5 to 2 liters
16 kg	3 y 6 mo	1.5 to 2 liters
17 kg	4 y	1.5 to 2 liters
18 kg	4 y 6 mo	1.5 to 2 liters
19 kg	5 y	1.5 to 2 liters
20 kg	5 y 6 mo	1.5 to 2 liters
21 kg	6 y	1.5 to 2 liters
22 kg	6 y 4 mo	1.5 to 2 liters
23 kg	6 y 8 mo	1.5 to 2 liters
24 kg	7 y	1.5 to 2 liters
25 kg	7 y 4 mo	1.5 to 2 liters
26 kg	7 y 8 mo	1.5 to 2 liters
27 kg	8 y	1.5 to 2 liters
28 kg	8 y 4 mo	1.5 to 2 liters
29 kg	8 y 8 mo	1.5 to 2 liters
30 kg	9 y	2 to 2.5 liters
31 kg	9 y 4 mo	2 to 2.5 liters
32 kg	9 y 8 mo	2 to 2.5 liters
33 kg	10 y	2 to 2.5 liters
34 kg	10 y 3 mo	2 to 2.5 liters
35 kg	10 y 6 mo	2 to 2.5 liters
36 kg	10 y 9 mo	2 to 2.5 liters
37 kg	11 y	2 to 2.5 liters
38 kg	11 y 4 mo	2 to 2.5 liters
39 kg	11 y 8 mo	2 to 2.5 liters
40 kg	12 y	2.5 to 3 liters

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Values imported unchanged on 2026-11-04. Independent verification against official sources is in progress (see Methodology).

Last updated: 2026-11-04