Neiko 53829A Lab Safety Goggles, Impact and Chemical Splash Resistant | Indirect Ventilation, Polycarbonate Lens, ANSI Z87.1 Perfect protective, anti-chemical eyewear for science (classrooms, medical, laboratories, chemistry, research) and industry (drilling, woodworking, construction) Impact resistant with indirect vents that face backwards for vision protection against splashing chemicals Soft, wrap-around PVC frame offers maximum comfort and adjustable elastic strap fits all head sizes (one-size-fits-all) Polycarbonate lens protect against airborne particulates and is ideal for use on job sites with power tools Meets ANSI safety glasses standards Z87.1 and Z87+ (high-velocity impact) for OSHA approval and use as ballistic eyewear