3M Infrared Welding Flip-Up Shade 3 Safety Glasses — ANSI Z87.1+ Fits-Over N95 Respirator A dorsal connection loop that

A dorsal connection loop that lets you attach an SRL without reaching over your shoulder to the standard D-ring — it simplifies connection at the back of the harness

so it flows more air and clogs more slowly

durable polyester webbing

It detects both smoke from a developing fire and carbon monoxide (CO) gas

3M Infrared Welding Flip-Up Shade 3 Safety Glasses — ANSI Z87.1+ Fits-Over N95 Respirator A dorsal connection loop thatEDITORIAL REVIEW: 4. 4 5 WC Safety Review of the 3M Infrared Welding Flip Up Shade 3, the fits over gas work shade with a flip up lens. Editorial assessment by Steven Eaton, WC Safety editor, based on published 3M specifications and category fit. We did not laboratory test this product. The 3M Infrared Welding Flip Up Shade 3 (model 90033) is an ANSI Z87. 1+ welding safety glass with a built in Shade 3. 0 infrared filter, designed for brazing,