Ear protection.. do it. I can't hear for shit my own fault. Cheap insurance twenty bucks from Jegs. http://www.jegs.com/p/Main-Gate/Ear-Protection/743517/10002/-1

I've owned a blast cabinet for 23+ years using every conceivable media including glass and a retrofit box for soda. And these guys have an awesome Hershey space! $1,199.

BIG 46"W, 28"D, 28"H Work Area
Same proven blast cabinet as our famous 960 Pro Blaster but with trigger gun operation instead of foot pedal.
Easy to use: just insert part through side-loading door and pull trigger. Power gun with full-hand trigger lets you "feather" the blast for special applications or use "full blast" for heavy rust removal. Removes rust, paint, and scale to bare metal FAST! Cleans air cleaners, headlights, taillights, fuel pumps, carburetors, manifolds, interior and under-the-hood parts, wheels, springs, hinges, motors, pistons, valves, cylinder heads, and more! Can also etch glass or blast designs in wood. Big work area accommodates almost any auto or truck component, mirror, glass, sign, etc., with room to spare!
Why chance lost or damaged parts? You can have full control of your parts and pay for your cabinet on the very first restoration!
960-T SKAT BLAST Cabinet Includes:
Powerful Vac-40 Vacuum to remove dust as you blast
High-Velocity S-25 Trigger-Operated Power Gun
3 steel nozzles
7 ft air hose from gun to your air supply
28" long double-strength cabinet gloves
Tempered glass lens, 12" x 24" x 3/16" with peel-off inner lens protector
50 lbs fast-cutting Skat Magic Abrasive
Automatic abrasive recycling system
Right-hand side-loading door, full-size 11 gauge steel
Strong 11-20 gauge USA steel construction
Expanded metal screen holds objects up to 200 lbs
Adjustable 120 watt flood lamp assembly
Quick-change trap door for fast abrasive changes
SPECIFICATIONS: Overall size - 48"w, 30"d, 64-1/2"h. Work area - 46"w, 28"d, 28"h. 11 ga steel door with angle iron framework, 20 ga steel body. Requires 10-15 cfm @ 80 psi. (For 7-10 cfm order low air supply nozzle setup - #6311-04.) 125 psi max. 5 ft vac hose & Vac-40 Vacuum System. Fully Assembled. Crate size: 56"w, 34"d, 70"h. Ship wt: 400 lbs. Made in USA!