These help make snow blowers safer and more convenient to use

1. One-handed drive/auger (on two-stage models):

Most models let you engage the drive-wheel and auger-control levers with one hand, leaving the other free to control the chute.

Drive disengagement (two-stage models).
A growing number of new machines use triggers that ease steering by letting you quickly disconnect either or both wheels from the transmission on the fly, rather than having to move a pin or lever at a wheel.

Dead-man control. A critical safety feature found on all tested models. It stops the spinning auger and, on two-stage models, the impeller when the handlebar-grip controls are released.

2. Easy chute adjustment:

The best let you quickly change the direction and height of thrown snow via a single-lever joystick or a long, accessible handle (on single-stage models). Most two-stage machines have separate controls for each, while single-stage units often have stiff, awkward handles on the discharge chute.

3. Headlights.:

Many snow blowers have headlights for night use.

4. Easy starting:

All electric models turn on with a switch. Most gas-powered models include plug-in starting--handy if you're near an outlet. The basic Craftsman lacks an electric-start version or kit.

 Two- or four-stroke engine. All two-stage snow blowers have a four-stroke engine that requires periodic oil changes. The single-stage Toro, Ariens, and Yard Machines use a two-stroke engine that requires no oil changes, but entails mixing oil with the fuel. All gas snow blowers must meet the same emissions standards.

Clearing tool. Typically it is a plastic stick used for safely clearing clogs in the discharge chute or auger housing. Use a wooden broom handle, never hands or feet, on models without the tool.