CFM (cubic feet per minute) is the more important spec for a blower — it measures how much air volume the motor moves, which is what actually fills large inflatables like bounce houses fast. MPH measures air speed, which matters for focused directional tasks like leaf blowing, not for inflating high-volume structures.
Bounce houses and large inflatable structures need massive air volume delivered continuously to maintain their shape under load — that's a CFM job. A blower with high MPH but low CFM pushes air fast through a narrow stream; it won't fill a 15-foot bounce castle in any practical timeframe. For inflatable products, CFM is the spec that predicts real-world fill time. MPH becomes relevant only when airflow direction and force matter more than volume.
- CFM (cubic feet per minute) measures air volume output — the primary performance spec for inflatable blowers.
- MPH measures air velocity — relevant for leaf blowers and spot-drying tasks, not large-volume inflation.
- Gonflable's 1,100W / 1.5HP blower is rated for high-CFM continuous output suited to full-size bounce houses.
- A standard bounce house requires sustained high-CFM airflow; low-CFM blowers will fail to maintain inflation pressure under load.
- Gonflable's 480W blower suits smaller inflatables under approximately 50 cubic feet — CFM output is scaled accordingly.