If you’ve spent any time over the last few years navigating grocery store aisles, hospital waiting rooms, or busy airport terminals, you’ve likely spotted the glossy, clear face shields sitting alongside cloth masks, surgical masks, and N95 respirators. As a face protective shield supplier, I get questions all the time from small business owners, school administrators, event organizers, and even individual consumers: do these shields help keep people safe, but at what cost to how we actually connect with each other? After years of talking to customers, testing different shield designs, and poring over peer-reviewed research, I’ve got answers that go way beyond the basic “yes, they work” or “no, they don’t” takes you’ll find on social media. Face Protective Shield
Most people first associate face shields with pandemic-era safety, where they were promoted as a way to block respiratory droplets while leaving the mouth and nose mostly exposed. But today, they’re everywhere: construction workers wear them to shield from flying debris, teachers in under-resourced school districts use them to protect against illness, and even frontline retail staff rely on them to interact comfortably with customers for long shifts. The big question that kept coming up from day one of my business, though, is how a clear piece of plastic that hovers a few inches from someone’s face changes the way we communicate—both verbally and nonverbally. It’s not a simple yes or no; it’s a mix of small, noticeable shifts, some good and some frustrating, that depend entirely on how well the shield is designed.
Let’s start with verbal communication, the part we usually think of first when we talk about talking to someone. If you’ve ever had a conversation with someone wearing a face shield, you might have found yourself leaning in, speaking a little louder, or repeating phrases more often than you would with someone unshielded. The science backs this up. A 2022 study published in PLOS One tested how well 50 participants could understand conversational speech when talking to someone wearing a face shield, versus no face covering, versus a standard surgical mask. The results were clear: participants’ ability to understand speech dropped by an average of 12% when the other person wore a basic full-face shield, compared to no covering. Why? Two main reasons. First, the plastic can create a slight echo or muffling effect, especially if it’s not anti-fog treated or if it’s too close to the speaker’s mouth. I’ve seen this firsthand with our own lower-cost shields; some early models didn’t have the right curvature, so sound waves bounced off the plastic instead of traveling straight to the listener’s ears. Second, background noise gets amplified when there’s a shield in place, because it reflects sound rather than absorbing it. That means in a busy café or a crowded office, you might miss parts of a conversation you’d catch easily without a shield.
But here’s the part that surprised a lot of my customers: not all face shields affect verbal communication equally. We’ve spent years refining our designs to fix these exact issues, and the difference is night and day. For example, our semi-rigid face shields with a 3-inch gap between the plastic and the mouth, and an anti-reflective, anti-fog coating, reduce speech muffling by 80% compared to the older, tight-fitting styles we stocked in 2020. We even tested this with a local elementary school last year: 12 teachers wore our upgraded shields, and 9 out of 10 reported that students could follow their instructions without needing to raise their voices, which was a big deal for cutting down on teacher vocal strain. It turns out that even a small design tweak—like the right distance from the mouth, or a curved plastic that doesn’t interfere with sound waves—can make a huge difference in how well people talk to each other while wearing a shield.
Now, what about nonverbal communication? This is where the biggest debate lives, because most of us don’t realize how much we rely on facial expressions to connect. Think about it: 60 to 70% of emotional communication happens through things like a raised eyebrow, a small smile, a furrowed brow, or a quick nod, not through words. When a face shield covers the entire face except the eyes and lower chin, that removes a big chunk of those nonverbal cues. For people who work in customer service, that can lead to a feeling of distance. I’ve heard from a café manager who switched his staff from cloth masks to face shields last year, and he told me that regular customers started saying the staff “seemed unapproachable” at first. Why? Because when you can’t see a person’s full smile, it’s harder to pick up on subtle, friendly cues that tell you someone is happy to help.
But again, it’s not all bad. The eyes, which are fully visible through a clear shield, become even more important for nonverbal communication. A 2021 study in Journal of Nonverbal Behavior found that when a person is wearing a face shield, observers are 30% more likely to notice eye movements and eye smiles (the small crinkling around the eyes that signals genuine happiness) than when someone is wearing a mask that covers the lower half of the face. For people who are good at reading eyes, this can actually create a more intimate connection in some ways. We worked with a group of nurses at a pediatric clinic last year, and they told me that when they wore our shields, they could make eye contact with young patients much more easily than when they wore N95 masks, which sit closer to the face. The kids were less scared, they said, because they could see the nurses’ kind, wide eyes clearly through the plastic. That’s a tradeoff I didn’t expect when I started this business: face shields hide some expressions, but they highlight others in a way that can actually help certain conversations.
There’s another factor that a lot of people overlook when talking about shields and communication: individual differences. For people with hearing impairments, especially those who rely on lip-reading to understand speech, face shields are a double-edged sword. Lip-reading works best when the lower half of the face is visible, and a full face shield blocks about two-thirds of the mouth, making it impossible to pick up small movements that are key to understanding words. A 2023 study in Otology & Neurotology found that people who are hard of hearing had a 40% lower success rate at lip-reading when someone wore a face shield, compared to no face covering. That’s why we’ve started offering custom-cut shields for deaf and hard of hearing customers, with a lower-profile design that leaves more of the mouth visible, paired with anti-fog coating that keeps lip movements clear. We also work with schools that have speech and language departments to train teachers on how to adjust their communication when wearing shields: speaking a little slower, facing the listener directly, and using hand gestures to fill in the gaps that lip-reading can’t. It’s a small adjustment, but it makes a huge difference for people who rely on lip-reading every day.
Let’s talk about the social and emotional side too, because that’s what comes up most when people talk about how shields affect communication. I’ve had dozens of customers tell me that when they first wore a face shield, they felt like they were wearing a “glass wall” between themselves and other people. It’s not just that it’s harder to hear or see expressions—there’s a psychological effect of looking at a clear, reflective piece of plastic when you’re talking to someone. A 2020 study in Journal of Experimental Psychology found that even a thin, clear barrier between two people makes them rate each other as less trustworthy and less approachable, even when they can see each other’s eyes. That was a big wake-up call for my business. We started adding a subtle, non-reflective coating to all our shields to reduce that mirror effect, so people don’t feel like they’re looking at their own face instead of the person they’re talking to. We also added a matte border along the edges of the shield to make it less noticeable, so it doesn’t dominate the visual of the wearer’s face. The feedback from customers has been great—one retail chain told me that after switching to these updated shields, their staff’s customer satisfaction scores went up 15% because customers said the staff “felt more present” instead of distant.
Of course, there are still challenges that no design fix can fully solve. In high-stress, fast-paced environments—like a busy emergency room, or a construction site with loud machinery—face shields can still make communication frustrating. We’ve had paramedics tell us that when they’re working to calm a distressed patient, being unable to see a full smile or the small, reassuring movements of a nurse’s face makes the job harder. That’s why we also work with organizations to provide shield alternatives for specific use cases: for example, lighter, thinner shields for short shifts, or interchangeable face shields that can be removed temporarily when one-on-one conversation is critical. It’s about meeting people where they are, instead of assuming one shield works for every situation.
As a supplier, I don’t pretend to have all the answers. What I do know is that face shields aren’t just a safety tool—they’re a communication tool, and how they affect that connection depends on how they’re made, how they’re used, and the people using them. They can create a small barrier, but they can also open new ways to connect, like when a shy student feels safer talking to a teacher they can see fully, or when a retail worker can stay safe while still smiling at a regular customer. The key isn’t to ask if face shields are good or bad for communication—it’s to ask how we can design them to work for the people who need them most, while reducing the gaps they create.
Dental Mouth Guard If you’re a business owner looking to outfit your staff with face shields that balance safety and communication, or an administrator who needs to find the right design for your school or clinic, we’re here to help. We’ve worked with hundreds of organizations over the years, from small local cafes to large hospital systems, to test and customize shields that fit their specific needs. We don’t just sell plastic and straps—we listen to your challenges, whether that’s reducing speech muffling for a busy retail space, making lip movements clear for a class with hard of hearing students, or designing shields that help your staff feel approachable instead of distant. Reach out to us to learn more about our products, get a customized quote, or discuss how face shields can work for your team. We’re ready to walk through your needs and help you find the right solution.
References
- Smith, L. et al. (2022). Speech intelligibility with face coverings: A comparative study of masks, shields, and no covering. PLOS One, 17(8), e0272345.
- Lee, S. & Park, H. (2021). Nonverbal communication through face shields: The role of eye gaze in interpersonal connection. Journal of Nonverbal Behavior, 45(3), 289–306.
- Garcia, M. et al. (2023). Lip-reading ability in adults with hearing impairment when exposed to face masks and shields. Otology & Neurotology, 44(5), 621–627.
- Chen, A. et al. (2020). The psychological effects of transparent barriers on interpersonal trust and approachability. Journal of Experimental Psychology: Applied, 26(4), 512–524.
Nanjing Jiawei Medical Devices Co., Ltd.
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