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Those Anti-Covid Plastic Barriers Probably Don’t Help and May Make Things Worse
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Those Anti-Covid Plastic Barriers Probably Don’t Help and May Make Things Worse


    Covid precautions have turned many parts of our world into a giant salad bar, with plastic barriers separating sales clerks from shoppers, dividing customers at nail salons and shielding students from their classmates.


    Intuition tells us a plastic shield would be protective against germs. But scientists who study aerosols, air flow and ventilation say that much of the time, the barriers don’t help and probably give people a false sense of security. And sometimes the barriers can make things worse.


 Standard material for displays, and replacement windows. Some signage acrylic sheet uses.


    Should you invest in a set of side window visors?


    Automotive styling is a strange creature. For decades, external windshield visors ruled the black top with one-piece metal shades, adorning the tops of many vehicles from about the 1940s. Some of these were externally adjustable, others with remote controls inside, and some just fixed at the proper angle to keep glare from blinding drivers.


    At about the same time, side-window visors — or deflectors — first appeared, although they never really caught on like windshield visors did. But they’re still in the game and used by more than just smokers who want to be able to keep their windows slightly open without getting soaked in the rain; they’re also handy if you’ve parked in direct sunlight and want some ventilation without worrying about a sudden rain shower.


    These come in two basic styles: peel-and-stick units that mount to the window frame, or the in-channel type that slides into the horizontal soft channel the glass closes into. The latter brings a cleaner look and are less likely to be damaged by car-wash brushes or normal wear and tear. The peel-and-stick style, though, may damage paint if they aren’t removed carefully, should you need to replace a broken visor. Installing either is a basic do-it-yourself job.


    There’s a major drawback to some of the in-channel mounted visors, though. When it comes to one-touch power windows, most come with a safety mechanism that reverses the direction when closing the window to avoid pinching, say, a finger or a hand. If your visor kit has too thick an edge and your one-touch windows have this override, they will never close properly.
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