An oxygen mask is designed to channel airflow from an oxygen source to the face. It connects to tubing and can be used in home-care setups, clinical environments, and first aid training kits. It’s not a source of oxygen by itself—it works with a tank or concentrator as directed.

• Home and transport care: Helps deliver supplemental oxygen when prescribed or instructed.
• First aid and training: Pocket-style resuscitation masks are used for practice and preparedness.
• Accessories and comfort: Pads and cushions can reduce friction where masks contact skin.

At Walmart, you’ll find adult and pediatric masks, tubing, and accessories. For any therapy or emergency use, follow packaging instructions and consult a licensed professional for guidance.

You’ll see a few common styles, each intended for different setups. Product descriptions will note features and intended use.

• Simple oxygen mask: A basic, lightweight option that covers nose and mouth for general oxygen delivery.
• Non-rebreather mask: Typically includes a reservoir bag and valves to limit room air mixing for higher oxygen concentrations.
• Venturi mask: Uses interchangeable adapters to deliver more precise oxygen percentages in clinical guidance.
• Pocket CPR masks: Compact resuscitation masks used in training and first aid kits.

Many masks come in adult and pediatric sizes with adjustable straps and nose clips. Choose based on the instructions from your care team and the details listed on Walmart product pages.

It helps to separate fitness gear from oxygen delivery gear. Most oxygen masks sold here are designed to connect to oxygen tubing and aren’t intended to change athletic performance metrics.

• VO2 max basics: It’s typically measured with specialized equipment in a controlled setting.
• Training masks: Airflow-restriction products may alter perceived breathing effort, but they don’t reliably replicate altitude or replace professional testing.
• Safety first: Exercise with any face covering can feel different, and individual responses vary.

If you’re aiming to assess or improve VO2 max, consider speaking with a qualified coach or medical professional. Review product descriptions on Walmart to make sure a mask matches your intended use.

Many oxygen mask accessories and tubing are sold as general retail items on Walmart, while the oxygen source and therapy settings are typically determined by a licensed professional.

• Over-the-counter items: Masks, tubing, and replacement valves are often available without a prescription.
• Prescribed equipment: Oxygen gas and usage settings are usually part of a care plan.
• Coverage and rules: Requirements can vary by state, insurer, and product type.

When a mask is part of a treatment plan, follow your provider’s instructions. You can shop online for pickup or delivery, and some items may be FSA/HSA eligible—check the product page for details.

Start by checking the size listed on the product page. Many masks are labeled adult or pediatric, and some offer small/medium/large options with an adjustable strap and nose clip.

• Face fit: Review any measurement guides and product photos for nose-to-chin coverage.
• Adjustability: Opt for masks with elastic straps and a bendable nose clip if you’re between sizes.
• Tubing length: Consider where you’ll use it—6–7 ft lengths are common for flexibility.
• Comfort: Look for smooth edges and compatible cushions if skin sensitivity is a concern.

If a specific style is part of your care plan, use what your provider recommends and follow the instructions included in the packaging.