What to Expect
Your First Class
at AIRLAB

Every AIRLAB member has a first class. And almost every one of them walks in with the same combination of curiosity and low-grade anxiety about what training at altitude is actually going to feel like. The breathlessness. The equipment. The other people in the room who look like they know exactly what they're doing.

This article is the thing we wish every new member could read before walking through the door. It's a direct, accurate walkthrough of the experience — from the moment you arrive to how your body feels in the days afterward. If we do our job here, you'll show up to your first class informed, calm, and ready to work. No surprises. Just the real thing.

Before You Arrive

What to Wear and Bring

Standard workout gear is all you need. Supportive athletic shoes — running shoes or cross-trainers work well — and comfortable activewear that you can move freely in. The altitude room maintains a stable temperature, so you don't need to dress for cold despite the mountain elevation being simulated. Miami-appropriate athletic wear is completely fine.

Bring a water bottle. Hydration matters more at altitude than it does at sea level — the increased respiratory rate means you're losing more water vapor with each breath. Come already well-hydrated, and drink throughout the class. We have water available at the studio, but having your own bottle is better.

Arrive 10 to 15 minutes before your class starts. This gives you time to check in, get oriented, ask any questions you have, and acclimate to the space before the class begins. Showing up right at class time as a first-timer adds unnecessary pressure to your experience. Give yourself a buffer.

Should You Eat Before Class?

Yes — but not immediately before. A light meal or snack 60 to 90 minutes before class is ideal. Training altitude with an empty stomach increases the likelihood of feeling lightheaded during the session. Training with a very full stomach creates its own discomfort. A small to moderate meal with some carbohydrates and protein in the hour or two before class is the right approach.

Arriving at the Studio

AIRLAB has two locations: Midtown Miami at 2901 NE 1st Avenue, Suite 12, and Coral Gables at 35 Alhambra Plaza. Both studios have the same format — the altitude room is the primary training space, and every class takes place inside it.

When you arrive, the front desk staff will check you in and walk you through the basics. If it's your first class, let them know — we orient first-timers slightly differently than returning members, and your coach will know to give you a brief orientation before the class begins. This is not a big production. It's a quick, practical overview of what to expect and how to modify if you need to.

You'll be able to store your belongings and get settled before entering the altitude room. The room itself is immediately visible — it's purpose-built, not a repurposed gym space, and the environment reflects that.

What the Altitude Room Looks and Feels Like

The altitude room at AIRLAB is a sealed, climate-controlled training environment equipped with everything needed for the class programming. It's designed for group training — there's space for the class, the equipment for the day's session, and the coaching staff who run the class from inside the room.

The moment you enter, you may notice the difference in air immediately. Some people do; some don't notice it until they start moving. The air is not thinner in the way mountain air feels cold and crisp — it's the same temperature and humidity as the rest of the studio. What's different is the oxygen concentration. At 14% oxygen versus the standard 21%, there's simply less available oxygen in each breath you take.

For most people, the first notable sensation is during the warm-up: breathing feels slightly more effortful than expected for the intensity of movement. This is normal. It is not a sign that something is wrong. It's your body doing exactly what it should be doing — working harder to deliver oxygen to your muscles in a reduced-oxygen environment. That's the entire point.

The Class Structure

The Warm-Up

Every AIRLAB class begins with a structured warm-up. This is not optional, and it matters more at altitude than it does in a standard training environment. The warm-up serves two purposes: it prepares your muscles and joints for the demands of the main workout, and it gives your cardiovascular system time to begin calibrating to the altitude environment before you're asking it to perform at full capacity. Expect 8 to 12 minutes of progressive movement — mobility work, light cardiovascular activation, movement prep specific to what you'll be doing in the main session.

Don't underestimate the warm-up. First-timers who skip or rush the warm-up have a harder time than those who take it seriously. Your body needs that runway.

The Main Workout

The structure of the main workout varies by class type. AIRLAB offers a range of class formats — conditioning, strength, and HYROX simulation — and the main block reflects the format you've booked into. All programming is developed by Director of Programming Giovanni Perez and is designed specifically for the altitude environment. The exercises are familiar functional movements — squats, lunges, pressing patterns, pulling patterns, cardiovascular intervals. The difference is that every rep demands more from your cardiovascular system than the same rep at sea level.

The coach will demonstrate and explain each movement before you do it. Modifications are available and expected — particularly in your first few classes, scaling the intensity or adjusting the movement is intelligent, not weak. The goal of your first class is to complete it, to experience the altitude environment, and to understand what your baseline is. The goal of subsequent classes is to build on that baseline.

During the main workout, your heart rate will be elevated higher than you might expect for the perceived effort. This is normal at altitude. If at any point you feel genuinely unwell — not just breathless or tired, but dizzy, nauseous, or experiencing unusual chest discomfort — step outside the room and let the staff know. This is rare, but it's the right thing to do if it happens.

The Cool-Down

The cool-down is structured and intentional. Your heart rate needs to come down in a controlled way after the exertion of altitude training, and your muscles benefit from the mobility and stretching work that follows a hard session. Expect 8 to 10 minutes of guided cool-down — don't rush out of it. The few minutes you invest in the cool-down make a meaningful difference in how your body feels in the hours and days afterward.

What the Breathlessness Actually Feels Like

Let's be direct about this, because it's the thing that surprises first-timers most consistently. The breathlessness at altitude is not the same as being winded from running hard. It's a different sensation — a mild background awareness that your breathing is working harder than usual, that you're not getting quite as full a breath as you're accustomed to. During harder efforts in the main workout, it becomes more pronounced. During rest periods, it subsides.

It is not dangerous for healthy individuals. It is not a sign that something is wrong with you or with the room. It is the predictable, physiologically expected response to training in a reduced-oxygen environment. Every person in the room — including regulars who have been training at AIRLAB for months — is breathing harder than they would at sea level. The regulars have simply adapted to manage it more efficiently, which is the adaptation you're beginning to build from your very first class.

The most useful mindset for the first class: treat the breathlessness as information, not as a signal to stop. Notice it. Breathe through it. Keep moving at whatever pace lets you stay in control. That's the entire skill, and it develops quickly.

How Your Body Feels Afterward

After your first class, most members report a specific combination of tiredness and alertness. The exertion is real — your body worked hard, and your cardiovascular system in particular logged a more intense session than the same workout would have produced at sea level. You'll feel it. But altitude training also tends to produce a post-workout state that many members describe as unusually clear-headed and energized, rather than the flat fatigue that sometimes follows conventional gym sessions.

The next day, you may have some muscle soreness in areas that worked hard. This is normal and expected, particularly in your legs and core. It's not more severe than standard DOMS — in fact, altitude training's effect on recovery hormones often means first-timers are less sore than they expected to be based on how hard the class felt in the moment.

What Changes by Class Three and Four

This is the part we want every first-timer to know before they even walk in the door: the first class is the hardest. Not because the programming is harder, but because your body has never experienced this environment before. The adaptation begins immediately — from the moment you're exposed to the altitude environment, your body starts making physiological adjustments to cope with the reduced oxygen availability.

By your third or fourth class, the shift is noticeable. The breathlessness that felt constant in the first class becomes more manageable. You can push harder in the main workout without feeling like you're at your ceiling. Movements that felt awkward while managing your breath start to feel more natural. The altitude environment stops feeling like something you're fighting and starts feeling like something you're training inside.

That transition — from the first class to the fourth — is one of the most satisfying progressions AIRLAB members experience. It's tangible, measurable, and it happens fast. Come in for the first class knowing that the fourth class will feel significantly different. You're not signing up for perpetual struggle. You're signing up for adaptation, and the adaptation is real.

Ready to Come In

Your first class at AIRLAB is free. No credit card, no commitment, no pressure to sign up for anything. Just book a time, show up 10 minutes early, tell the team it's your first class, and trust the process. Both our Midtown Miami and Coral Gables locations have availability throughout the week.

If you have specific health questions or concerns about training at altitude, reach out before booking — we're happy to have that conversation. For the vast majority of healthy adults, the first class is the starting point of something that produces results they didn't expect to see this quickly. Come find out for yourself.