Quick answer: Full-face protection is a fundamental piece of turning equipment, not an optional add-on because pens are small.
Why safety glasses alone are insufficient
Safety glasses can still be useful when drilling or doing work away from the lathe, but they are not a substitute for the turning recommendation.
Assess coverage and fit
Scratched or cracked shields should be replaced according to the maker’s instructions. Good visibility affects safe tool handling.
Dust and other protection
Tie back long hair and remove gloves, scarves and jewelry near rotating equipment. A face shield is one layer in a complete safe working system.
Buying correctly
Check whether a listing is actually intended for impact hazards from turning, rather than a splash-only face screen. Confirm replacement visors are available and that the product fits the operator. If the specification is unclear, consult the manufacturer or an appropriate safety professional before using it at the lathe.
A practical fit test before turning
A shield that is uncomfortable may encourage people to remove it during inconvenient cuts; comfort and usability therefore matter.
What a face shield does not replace
Wood dust, hearing hazards, flying debris from other tools, and entanglement hazards are separate issues. No single piece of PPE makes a poorly mounted blank safe or justifies loose clothing around the spindle. Follow the entire AAW lathe safety process.
Sources and further verification
Source links are included to help you confirm equipment specifications, accessories and recommended safety practices. Specifications may change with product revisions.