Question 1

Are these non-vented or vented?

Accepted Answer

From an engineering perspective, the smallness of the vents greatly reduces air flow around the eyes, preventing drafts or slight air currents from blowing across your eyes, which will reduce your exposure to things floating in the air such as dust or aerosols much more significantly than, say, a face shield or even goggles with much larger vent holes.  The smaller the opening the less can drift in and these have pretty small openings.  From a medical perspective, these are not 100% sealed so not as rigorous protection as positive pressure hoods and the like. They will not make you invincible nor give you medical procedure level protection, i.e. not for hospital staff doing intubation procedures which should have medial grade equipment, but these will reduce your exposure via eyes more effectively than a face shield.  I do agree that the label "complete seal between your face and the environment" implies much more than these really do and should be removed from the description; however, the vent area being so small does offer more protection than many other basic safety goggles on the market.

Question 2

Why price has been doubled?

Accepted Answer

Price gouging is a violation of Amazon’s rules of conduct for sellers. They’re definitely in violation of this! Today they’re $30 a pair which is triple the original cost from December 2019/Jan 2020. We do reviews and wanted a pair but i cannot justify this price.

Question 3

Can I wear them over glasses And do they meet the  d3 and d4 standard?

Accepted Answer

yep they fit over my wire-frame glasses. The seal has little notches to accomodate glasses. I'm not sure what d3 and d4 standards are so i can't answer that part of your question.

Question 4

$21.98 for 0ne? Paid $14.98 for 2 less than 2 weeks ago with this seller! Huge hike!

Accepted Answer

I paid $41.72 for one 😞

Asin	B07QLTXLZJ
Best Sellers Rank	#1,050 in Safety Goggles & Glasses
Date First Available	November 15, 2019
Department	Unisex
Item Model Number	SW8301
Manufacturer	SolidWork
Product Dimensions	6.77 x 2.44 x 2.87 inches; 0.32 ounces

Safety Goggles Anti-Fog Clear Lens with Adjustable Elastic Headband. Protective Eyewear for Men & Women

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