You've probably seen lifters at your gym biting down on something before a heavy set. It looks like a mouthguard, but it isn't one. It's a performance mouthpiece, and it's built for a completely different job.
In this blog, you'll see how a performance mouthpiece and a regular mouthguard differ, whether mouthguards improve athletic performance, which one fits your training, and how to choose your fit.
Mouthpiece vs Mouthguard for Lifting: The Short Answer
Short answer: a mouthguard is built to protect your teeth from hits. A performance mouthpiece is built to help you breathe better, clench stronger, and stay calm while you train.
Both go in your mouth, and that's about where the similarities end. If you lift, run, or do CrossFit or HYROX, a performance mouthpiece is the one made for what you're doing.
Three Key Differences Between a Performance Mouthpiece and a Regular Mouthguard
The easiest way to see the difference is to look at what each one is made to do.
1. What It's Built For
A regular mouthguard is built mainly for impact protection in contact sports. Its job is to cushion your teeth when something hits you.
A performance mouthpiece is built for training. Its job is to support your breathing, your clench, and your recovery.
2. How It's Designed
A mouthguard is mostly a cushioned layer over your teeth. The AIRWAAV Performance Mouthpiece is designed around your jaw. Its patented bite plate puts your jaw in an optimal position, so when you clench, it activates a neuromuscular response that engages more muscles and helps unlock more strength. It also helps position your jaw to open your airway for better breathing.
3. Where You Wear It
You wear a mouthguard anywhere hits happen, like games and contact drills. A performance mouthpiece belongs in the weight room, the CrossFit box, on a HYROX course, or on a long run or row.
Think of it like shoes. Cleats and lifting shoes both go on your feet, but you wouldn't squat in cleats. Same idea here.
Do Mouthguards Improve Athletic Performance?
A regular mouthguard does its job well: protecting your teeth. Performance just isn't what it's designed for.
If you want gear that works on your breathing and your clench, it has to be built for that. The AIRWAAV Performance Mouthpiece is built around three benefits:
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Breathe better to endure longer: AIRWAAV lowers respiratory rate by up to 20% (peer-reviewed), and its design helps position your jaw to open your airway.
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Clench stronger to perform better: The patented bite plate positions your jaw so every clench engages more muscles, something a traditional mouthguard is not designed to provide.
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Stay calm to recover faster: AIRWAAV reduces post-exercise cortisol by up to 50% (peer-reviewed).
All three are built on 15+ years of peer-reviewed research, developed in collaboration with Dr. Dena Garner, a researcher in muscle physiology and airway performance.
Which One Do You Need?
Your sport makes this an easy call. Find the line that sounds like you:
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You play a contact sport: Wear a protective mouthguard for games and any practice with contact.
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You lift, run, row, or do CrossFit or HYROX: A performance mouthpiece is made for you.
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You do both: Use both. Wear a mouthguard on the field and a performance mouthpiece in the weight room.
Just remember, a performance mouthpiece isn't built for impact protection, so it doesn't replace your mouthguard on game day.
Looking for the Best Sports Mouthguard for Non-Contact Sports?
If you don't play a contact sport, what you're most likely after is a performance mouthpiece. Here's what to look for:
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Easy breathing: It shouldn't get in the way of your breath on hard efforts.
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A fit you like: Some athletes want barely there, others want locked in.
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A solid clench: It should give you something stable to bite into, with your jaw well positioned.
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All-session comfort: If it bugs you, it'll end up in your bag.
AIRWAAV gives you two fits with the same benefits. PX1 has an open bite channel for a relaxed, barely-there fit. PX2 has a material-filled channel for a snug, locked-in fit that heavy lifters and hard clenchers tend to prefer.
Can't decide? The Performance Hybrid Pack gives you both, so you can switch whenever you like.
Tips for Your First Few Sessions
A little setup helps a performance mouthpiece feel natural fast:
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Fit it first: Follow the how-to-fit & use guide before you train with it.
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Start easy: Wear it for warm-ups and lighter work before a big session.
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Be patient: Breathing and bracing with a mouthpiece takes a few sessions to get used to.
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Add Nasal Strips: Pair Nasal Strips with your mouthpiece for the Performance System, a dual-airway advantage in training.
Before long, it'll feel like a normal part of your gear.
FAQs
Can I use a performance mouthpiece for football or hockey?
Not for contact. It isn't built for impact protection, so wear a protective mouthguard for games and contact drills. A performance mouthpiece fits your lifting and conditioning work.
Is PX2 better than PX1?
No. They have identical performance benefits. PX2 just has a snugger, locked-in fit.
Can I wear my performance mouthpiece to sleep?
It's made for training. For sleep, AIRWAAV makes the RX1 Recovery Mouthpiece. It uses patented Reflex Technology™ to clear your airway without jaw repositioning.
Can I use my HSA or FSA?
Yes. AIRWAAV is HSA/FSA eligible.
Choose the Right Gear for Your Training With AIRWAAV
A mouthguard and a performance mouthpiece aren't rivals. They just do different jobs. A mouthguard protects your teeth when hits happen. A performance mouthpiece helps you breathe better, clench stronger, and stay calm while you train.
If your training happens under a barbell, on a rower, or out on the road, go PX1 for a relaxed fit, PX2 for a locked-in fit, or the Hybrid Pack to try both.
Ready to find your fit? Shop AIRWAAV Performance Mouthpieces.