On Sat, 8 Aug 2009 08:27:08 -0600, "Bob M." wrote:

Any place that sells Stihl (pronounced 'steel') chain saws will either have
one or be able to get one, a hard hat with ear muffs & a wire face shield.

Arborist use them - sample

http://www.honeybros.com/gbu0-prodshow/HB31CB.html

External Shell - Advanced Thermo Material (ABS)
Internal Shell - Polystirene (EPS)
180 Degree Clear Visor
Peltor Optime II Ear Defenders
Size - Unisize (54/62cm)
Headlamp Clips
Quick Release buckle
Adjustable Size System
UK VAT Excempt