Premium quality, rechargeable silica gel packets are pure and safe without Cobalt Chloride. Each 20g packet contains a mixture of white silica gel beads and a few orange-indicating beads. When the indicating beads become saturated, their color will change from orange to dark green.
20g & 0.5g Silica Gel Desiccant Packets
$29.00 USD
Get Started with Portable Metabolic Testing!
- VO2 Master Analyzer
- 1 Standard Mask
- Consumables for 50 Tests
Experience the excitement of portable metabolic testing with the VO2 Master. Delivering lab-quality accuracy in a lightweight, wireless design, it empowers fitness professionals, athletes, and researchers to assess performance and optimize training anytime, anywhere.
Everything You Need To Test Multiple Times Daily!
- VO2 Master Analyzer
- 4 Mask Sizes – Fits all Demographics
- Consumables for 150 Tests
Unlock the full potential of metabolic testing with the VO2 Master Professional Kit. Built for high-frequency, diverse testing environments, this kit offers lab-quality accuracy in a portable, wireless design, empowering fitness professionals, researchers, and athletes to achieve peak performance with unmatched versatility.
1-year warranty
30-day risk-free trial
Free returns
No tariffs
Find the right VO2 Master kit for you.
Most Affordable
Essentials Kit
The Essentials Kit is perfect for getting you started with metabolic testing. Designed for low-test frequency use cases, it provides the core tools needed to ease into testing, keeping it accessible and budget-friendly.
Low Test Volume
Single Mask Size
Budget-Friendly
Best Value
Professional Kit
The Professional Kit is ideal for high-frequency testing environments. It includes everything you need to hit the ground running. Multiple masks and accessories let you switch users quickly while seamlessly accommodating a wide range of individuals.
Hit the Ground Running
Accommodates All Sizes
Faster User Rotation
More information
VO2 Master Analyzer Kit Contents:
- VO2 Master Analyzer
- Blue Hans Rudolph V2 reusable mask (Size selected prior to checkout/ordering)
- Hans Rudolph five-point head strap (sized to match the selected mask size)
- 50x Single use filter discs
- 3x User Pieces: One Resting, one Medium, and one Large (includes a Mask Locking Nut for each User Piece)
- User Piece hand tool (Used to aid in installing/removing the Mask Locking Nut)
- Hans Rudolph adjustable 3L calibration syringe
- Syringe Calibration Adapter + Silicone Piece (Additional Petite Mask Sealing Gasket, only supplied with the petite mask)
- 2x Syringe hoses
- Additional Desiccant Cartridge
- Polar Heart Rate Monitor + Strap and instructions
- Nanuk 910 waterproof, impenetrable and indestructible hard case
- Quick Start Guide
- Calibration Certificate
- Cleaning kit, includes swabs and wipes
- Pack of 4 AA Batteries – The VO2 Master Analyzer only requires a single AA battery (Supplied in select countries only) Note: VO2 Master Analyzers purchased prior to 2026-04-05 required AAA batteries instead of AA.
Experience our product risk-free for 30 days—we’re confident you’ll love it and won’t want to send it back.
We’re committed to ensuring your order arrives quickly and efficiently, with delivery times ranging from 5-15 business days depending on your location. At checkout, you can choose the shipping method that best suits your needs, with rates calculated based on your destination and preferences.
VO2 Master ships worldwide. However, some regions face logistical barriers or import restrictions, and we currently do not ship to:
- Mexico
- North Korea
- Pakistan
- Russia
See the Return and Refund Policy for eligibility and more information.
Break through training plateaus.
Go beyond conventional training methods and excel into the new era of personal assessment and physiology to maximize your training results.
Guided metabolic & performance testing.
Our FREE easy-to-understand performance reports provide you with essential training zone metrics, VO2 Max, Heart Rate and RMR values, plus many others used in training optimization.
Connect your way.
Achieve unparalleled portability by accessing live data through both the VO2 Master Manager app and the VO2 Master Garmin Data Field.
Frequently asked questions
Users should use the medium user piece if their ventilation range is between 30-160 L/min. The large user piece is used in most cases by professional high-intensity athletes or users with a ventilation range 40-220 L/min
No, assessment reports are provided instantly at your request and are available for download FREE of charge.
Using our ‘Contact’ page, complete the form and select ‘Replacement Parts’ under the ‘Type of request’ drop down menu.
Yes, though you are only required to purchase additional consumables based on your frequency of use. All analyzers are required to be serviced annually at the owner’s expense.
Just Looking for Accessories?
-
3L Calibration Syringe
$425.00 USD -
Face Mask & Headgear
$220.00 USD -
Face Mask Only
$135.00 USD -
Filter Replacement Pack
$120.00 USD
Start assessments in under 10 minutes
1. Power up
Assemble the analyzer after selecting mask size and user piece then power up the device.
2. Select your app protocol
After connecting your analyzer to your mobile device, select your chosen protocol and complete the guided calibration procedures.
3. Start assessment
Comfortably apply the analyzer, using the provided 5-point head strap and start the assessment protocol.