Particle Peturbation Probe sign

100x160mm sign, with artwork of brooms.

You may also enjoy the Contaminant Containment cylinder sign, to bring a higher tone to your entire set of custodial tooling.

Mesh and Solid (may print easier) models provided. 
Best with color switch above 1mm, as with included gcode.

Pictured in Shadowbox Frames, which fit all of my signs.