With fuel on hand, the 125B runs as long as you do. It clears 470 CFM at 170 MPH with a 9.4-pound weight.
Drawbacks
It needs mixed fuel and maintenance, and at 94 dB it is the loudest here. Check local noise rules.
Wear protection
Wear eye and hearing protection, and keep the air stream away from people and pets. Noise figures on listings do not always say whether they are sound power or sound pressure.
The two closest products on price
Same section, nearest cost — what else that money buys.
The live figure beside a product went and asked the shop for it the moment this page opened; any amount written into the text has not moved since the sentence was drafted, and it is the first of the two that counts.