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Best Training Masks

last updated May 13, 2019

Alright, so what exactly is the deal with training masks? If you have seen people wearing them at the gym you may have pondered to yourself the purpose as they certainly were not wearing it to keep them warm. The reality is these are used as performance tools and enhancers. Essentially, this type of mask is going to simulate the effects of what it would be like to breathe at higher altitudes. Their purpose is to make it harder to breathe in order to enhance your workout capacity, endurance, and stamina. From model to model, however, the options on the market can vary and it is critical for you to understand exactly what to look for to make the most educated decision possible. Thankfully, we are here to help. First, let’s take a look at some of the best training masks available on the market.

In a Hurry? The test winner after 10.75 hrs of research

icon
PHANTOM ATHLETICS
91.2/100 our score
Materials
94
Fit
92
Features
85
Stability
92
Ease of Use
93
PHANTOM ATHLETICS
Why is it better?

It is designed with high-quality material

Features ergonomic straps

You can buy swappable covers and sleeves for customization

In a Hurry? Editors choice:
PHANTOM ATHLETICS
Test Winner: PHANTOM ATHLETICS
Amazon Link
Researched Sources
37
Researched Sources
Reviews Considered
20k
Reviews Considered
Hours Researching
10.75
Hours Researching
Products Evaluated
15
Products Evaluated
Sorting Options
Materials Fit Features Stability Ease of Use By Default
Rank
PictureProduct
Name
Rating
Shops
#1
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.2
Materials
94 %
Fit
92 %
Features
85 %
Stability
92 %
Ease of Use
93 %
Price Comparison Last Updated (21.07.19)
Amazon Link
$59.88
#2
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91
Materials
93 %
Fit
84 %
Features
95 %
Stability
93 %
Ease of Use
90 %
Price Comparison Last Updated (21.07.19)
Amazon Link
$27.99
#3
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.4
Materials
86 %
Fit
89 %
Features
93 %
Stability
88 %
Ease of Use
91 %
Price Comparison Last Updated (21.07.19)
Amazon Link
$19.87
#4
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.2
Materials
92 %
Fit
86 %
Features
88 %
Stability
91 %
Ease of Use
89 %
Price Comparison Last Updated (21.07.19)
Amazon Link
$36.97
#5
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
88.6
Materials
90 %
Fit
87 %
Features
87 %
Stability
90 %
Ease of Use
89 %
Price Comparison Last Updated (21.07.19)
Amazon Link
$24.98
#6
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.4
Materials
83 %
Fit
84 %
Features
92 %
Stability
88 %
Ease of Use
90 %
Price Comparison Last Updated (21.07.19)
Amazon Link
$39.97
#7
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87
Materials
81 %
Fit
91 %
Features
89 %
Stability
86 %
Ease of Use
88 %
Price Comparison Last Updated (21.07.19)
Amazon Link
$69.99
#8
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85.8
Materials
82 %
Fit
86 %
Features
90 %
Stability
84 %
Ease of Use
87 %
Price Comparison Last Updated (21.07.19)
Amazon Link
$39.87
#9
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85
Materials
83 %
Fit
83 %
Features
84 %
Stability
87 %
Ease of Use
88 %
Price Comparison Last Updated (21.07.19)
Amazon Link
$12.99
#10
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
83
Materials
85 %
Fit
77 %
Features
80 %
Stability
83 %
Ease of Use
90 %
Price Comparison Last Updated (21.07.19)
Amazon Link
$11.99
In Depth Review Top 10
  • PHANTOM ATHLETICS PHANTOM ATHLETICS
  • RIDGE RUNNER RIDGE RUNNER
  • DIMOK DIMOK
  • TEC TEC
  • CARDIO KING CARDIO KING
  • SPARTHOS SPARTHOS
  • TRAININGMASK 3.0 TRAININGMASK 3.0
  • TRAININGMASK 2.0 TRAININGMASK 2.0
  • PIONEERYAO FACE MASK PIONEERYAO FACE MASK
  • CFORWARD FACE MASK CFORWARD FACE MASK
Table of contents
  • Criteria Used for Evaluation
  • Frequently Asked Questions
  • Sources

OUR TOP PICKS FOR THE BEST TRAINING MASKS

1. PHANTOM ATHLETICS

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.2
PHANTOM ATHLETICS
Amazon Link
Materials
94
Fit
92
Features
85
Stability
92
Ease of Use
93
best offer for today
Amazon Link
$59.88
Pros:

It is designed with high-quality material

Features ergonomic straps

You can buy swappable covers and sleeves for customization

Cons:

There could be more resistance settings

Worldwide, it seems as if this model right here has become the standard-bearer. When you start to assess the features and the overall design of it, it becomes apparent why that is very quickly.

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Materials

Due to the fact that this is designed with a combination of medical-grade silicone and durable nylon, it is ready and willing to last you for years of use.

Fitting

The ergonomic straps are nice in the fact that they help to improve the overall fit. Also, there are multiple sizes available to choose from and each of them is recommended based on your weight.

Resistance Settings

There are some models out there that are loaded with resistance levels but this actually only has four. Admittedly, you may prefer an option with more versatility in this regard.

Stability

The same ergonomic straps that were just alluded to also help to prevent this from slipping during use (the anatomic design also lends its hand with this as well).

Ease of Cleaning

Yes, you can wash this material and it is noted in the product description that doing so can be done in only a few short steps.

Overall

It is okay if some of you bypass this option simply because more resistance settings should have been implemented. Understand, though, that it still is not going to get much better than this (from an overall perspective).

2. RIDGE RUNNER

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91
RIDGE RUNNER
Amazon Link
Materials
93
Fit
84
Features
95
Stability
93
Ease of Use
90
best offer for today
Amazon Link
$27.99
Pros:

Designed with sweat-wicking technology

It comes with a resealable bag

The resistance system is great

Cons:

One user noted that the fit for them was poor

Thanks to the incredible resistance system and the new and improved stitching of this model, it is hard to ignore its greatness. Several previous buyers will back up those claims so that always helps.

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Materials

The engineers are in the belief that their model here has the most durable sleeve on the market and they may be right. It is one of the many reasons to adore this option.

Fitting

Now, this is actually a one-size-fits-all model and it is optimized for both men and women. It also is designed with adjustable sleeves to account for just about anyone. With that said, one buyer did note that theirs did not fit them very well.

Resistance Settings

What is incredible is a 32-level resistance valve system is equipped into this model. Let’s just say you will not find too many models with this versatile of a system.

Stability

In addition to the fact that this is equipped with an extra built-in grip at the front, it also sports sweat-wicking technology. Both of these combine for enhanced stabilization.

Ease of Cleaning

As with most options available on the market, you should not have too hard of a time when you go to wash this bad boy.

Overall

Quite simply, there are not that many training masks that can compete with this one. From top to bottom, the design is just brilliant and it is going to do a superb job of enhancing your stamina and endurance.

3. DIMOK

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.4
DIMOK
Amazon Link
Materials
86
Fit
89
Features
93
Stability
88
Ease of Use
91
best offer for today
Amazon Link
$19.87
Pros:

The resistance can easily be changed

It is designed with medical-grade silicone

Three sizes are available

Cons:

The quality is really good but not the absolute best

It goes to show how impressive the Phantom Mask is because when you compare this to that, this seems to be a cheap product. However, that is the farthest thing from the truth since scholars believed the earth was flat.

Read more

Materials

The good news is quality materials have been used to design this (such as medical-grade silicone and nylon). When compared to others, the quality is good yet not amazing.

Fitting

Overall, there are three sizes that are available for you to choose from and it is noted that users between 155 and 220 pounds should find one that suits them.

Resistance Settings

In addition to the fact that you can choose between 16 resistance levels when you are wearing this, it is conveniently designed and allows you to switch between them without taking it off.

Stability

For the most part, this seems to fit very well and creates a nice seal.

Ease of Cleaning

When you go to wash this, it can easily be disassembled to make the overall cleaning process even easier than it already would be.

Overall

You will not find too many people complaining about this training mask. Now, it is not quite as popular as other options but that is okay. That just means you can go away from the crowd.

4. TEC

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.2
TEC
Amazon Link
Materials
92
Fit
86
Features
88
Stability
91
Ease of Use
89
best offer for today
Amazon Link
$36.97
Pros:

Comes with a free carrying case

Backed by a 100 percent customer satisfaction guarantee

Equipped with 16 different breathing levels

Cons:

The adjustment levers could better

On top of the actual design, what really makes this option stand out is the fact that you are provided with a carrying case free of charge. This can prolong the shelf life of the product by keeping it safely stored at all times.

Read more

Materials

This is another option that is made out of medical-grade silicone so you know, at the very least, that this is built to last and perform.

Fitting

Even though this can be a snug fit, it is designed to fit most people. For the record, the rated weight range is 120 to 230 pounds.

Resistance Settings

The good news is you can simulate altitudes of 4000 to 18000 feet (there are 16 levels in total). But, the adjustment levers themselves are not quite as durable as they should be.

Stability

Thanks to the non-slip training straps that are implemented, it does not matter how much you sweat as these are going to keep the mask stable on your face.

Ease of Cleaning

While cleaning this is not hard, one user noted that one of the adjustment levers broke when they tried to. This just goes back to what was claimed about the durability (or lack thereof) of the levers.

Overall

Yes, it is a bit of a shame that the adjusters are not a bit more rugged but it just means you need to be more careful with them. Everything else is fantastic, though, so that is nice.

5. CARDIO KING

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
88.6
CARDIO KING
Amazon Link
Materials
90
Fit
87
Features
87
Stability
90
Ease of Use
89
best offer for today
Amazon Link
$24.98
Pros:

It is designed with a non-slip training strap

Features an anatomic design

There are small, medium and large size options available

Cons:

It can be a little uncomfortable

No directions come with it

Even though you will need to purchase a separate head strap (according to the seller) with this model, it is well-designed and made out of premium-grade neoprene material.

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Materials

This is made out of premium-grade neoprene material so you know that the quality is up-to-par.

Fitting

The reason it is important to note that the seller claims this does not come with a head strap is a few users has claimed otherwise. Now, as for the fitting, there are three sizes here and (overall) it is designed to fit users 120 to 230 pounds comfortably.

Resistance Settings

Included directions would have been nice but at least this is designed with numerous (six) levels of air resistance.

Stability

Due to the fact that this is designed with a non-slip strap, it is going to alleviate some of the issues that you can have with slipping. Even when you start to sweat, this is going to help.

Ease of Cleaning

Again, as with many of the other options on the market, this is not going to be very taxing when you need to wash it.

Overall

For the price of admission and the quality at hand, it is hard not to be somewhat impressed with this mask. It is not perfect but you know what, how many products are?

6. SPARTHOS

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.4
SPARTHOS
Amazon Link
Materials
83
Fit
84
Features
92
Stability
88
Ease of Use
90
best offer for today
Amazon Link
$39.97
Pros:

Backed by a 100 percent satisfaction guarantee

Features a slip-resistant design

The valve offers changeable levels of resistance

Cons:

Only one of the straps is adjustable

The headband is a little flimsy

When you look at the fabric and the adjustable levels of resistance, it becomes clear why this is such a popular choice. Sometimes looks can be deceiving as this design is not without its hiccups.

Read more

Materials

Sure, this could have a better headband as the current one is pretty flimsy. Overall, however, this is built fairly well.

Fitting

This is a one-size-fits-all model and it is ergonomically designed to enhance the fit. What would have been nice, though, is if both the straps would have been adjustable (as only one is).

Resistance Settings

There is no need to take this off when you wish to switch the simulated altitude as the built-in valves will take care of that for you. As for versatility, there are 16 different breathing levels.

Stability

For the most part, the stability of this face mask is good. The straps are engineered to hold steady even when you are running so that is nice.

Ease of Cleaning

Granted you hand-wash this and do so with gentle care, you should not have any issues with the cleaning here.

Overall

Some “fixes” here and there would have improved the overall design but when looking at this from unbiased lenses, you can see why so many previous buyers have raved about it.

7. TRAININGMASK 3.0

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87
TRAININGMASK 3.0
Amazon Link
Materials
81
Fit
91
Features
89
Stability
86
Ease of Use
88
best offer for today
Amazon Link
$69.99
Pros:

Offers six different levels of resistance

It is both lightweight and comfortable

Designed with one dial for convenience

Cons:

Overall, the build quality needs to be improved

For the record, there are different versions of this mask and this happens to be version 3.0. Of the versions, from an overall perspective, many would agree that it is the best.

Read more

Materials

As great as this model (and the entire series of masks, quite frankly) is, durability can be a bit of an issue. This is due to the straps and the thin nature of the sleeve.

Fitting

On top of being both lightweight and comfortable to wear, this comes in three different sizes (small, medium and large).

Resistance Settings

Outside of the fact that there are six resistance levels, the lone dial that is used to switch the resistance is convenient and simple to utilize.

Stability

While this is not notorious for having issues with slipping, an overhead band would have helped to alleviate slipping when it does persist (which can happen from time to time).

Ease of Cleaning

Overall, this is not that hard to clean but you will need to be careful. Remember, durability issues have been documented so be gentle with this when you go to wash it.

Overall

Looking past the build quality issues, the Training Mask 3.0 is as good as advertised. It is lightweight, comfortable and comes with a convenient dial for resistance adjustments.

8. TRAININGMASK 2.0

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85.8
TRAININGMASK 2.0
Amazon Link
Materials
82
Fit
86
Features
90
Stability
84
Ease of Use
87
best offer for today
Amazon Link
$39.87
Pros:

Designed with six different resistance levels

It comes with an additional strap

There are multiple sizes available

Cons:

The Velcro is not as long-lasting as it should be

A few users have experienced stability issues

This is a good example of a product that should not be considered obsolete. Ironically, though, the same issues that plague the other versions can plague this one too (even though it is still above-average overall).

Read more

Materials

There have been a few users who have noted that the Velcro that is implemented here is poor in quality and that it easily tears so be wary of that.

Fitting

Though it seems that this can fit very snug, there are three size options overall to account for several different heads (small, medium and large are the sizes).

Resistance Settings

From 3000 to 18000 feet (with six levels of resistance in-between the two), this can simulate the altitude level that you want to train at.

Stability

Okay, so there is an additional strap that is designed to go over your ears (to prevent slipping to an extent). However, there have been a few previous users who have claimed slipping can persist when you start to sweat.

Ease of Cleaning

You need to be careful when you wash the Velcro as it is already vulnerable, to begin with, let alone if you wash it aggressively.

Overall

Again, just because the Training Mask 3.0 exists, it does not mean that this 2.0 version is outdated. It is still a very competent design with not the best Velcro, admittedly.

9. PIONEERYAO FACE MASK

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85
PIONEERYAO FACE MASK
Amazon Link
Materials
83
Fit
83
Features
84
Stability
87
Ease of Use
88
best offer for today
Amazon Link
$12.99
Pros:

It is both windproof and dustproof

Backed by a 100 percent refund clause

You can change the filter when it needs to be replaced

Cons:

The fabric does not breathe well

The fit seems pretty tight

In addition to the fact that this is designed with two valves to block the air, it is also built with an activated carbon filter that allows for more environmentally-friendly breathing.

Read more

Materials

The fabric itself does not breathe the best and when it gets hot, it will get uncomfortable. Now, also worth noting here is the implemented activated carbon filter (that is replaceable).

Fitting

Thanks to the adjustable nose pad and the Velcro closure system, many of you will be able to find a close to perfect fit when you put this on. However, some users have complained about the fit is too tight.

Resistance Settings

Instead of offering several resistance levels, this is actually designed with two valves that simulate the effects of high altitudes.

Stability

Ironically, because the fit of this model can be quite tight, the issue of slipping is minimized (but many of you will think this is not done in the right way).

Ease of Cleaning

As with virtually every other model on this list, this will be easy to clean. But, you also need to wash it in a somewhat gentle fashion.

Overall

For those of you who just want to get your feet wet with this sort of technology, this could be a great option. The activated carbon filter is also nice, though.

10. CFORWARD FACE MASK

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
83
CFORWARD FACE MASK
Amazon Link
Materials
85
Fit
77
Features
80
Stability
83
Ease of Use
90
best offer for today
Amazon Link
$11.99
Pros:

Features adjustable Velcro

It is easy to clean

Sports a unique ventilation design

Cons:

It does not quite seal to your face at the bottom

The plastic over the nose is not flexible

Due to the nature of this design, it is not going to be for everyone. The addition of the active carbon filters, of course, is going to be a welcome sight for those who struggle with pollen allergies.

Read more

Materials

In addition to the fact that the material itself is comfortable on your skin, active carbon filters have also been implemented here.

Fitting

Some of the most common complaints about this model have been in regard to the size. For starters, the plastic over the nose does not conform very well and, secondly, the fit itself is small and tight.

Resistance Settings

There are no resistance settings for this model and it is really more suited for outdoor activities where you are looking to avoid allergies.

Stability

An additional strap would have helped with the overall design because slipping can be a minor issue from time to time.

Ease of Cleaning

First off, the filter is replaceable but you can also clean the entire mask to get the rid of all the dirt that has built up quite easily.

Overall

For the right circumstances, this can be a great option. If you are looking for the best option when it comes to simulating various altitudes, though, there are better ones.

Criteria Used for Evaluation

Materials

Not only are the materials going to affect the durability but they will also affect the fit and performance.

Before anything else, you need to assess the materials that are utilized in any given model that you have interest in. The reason for this is not all models on the market will be designed with the same materials and they can differ quite a bit when it comes to their performance and long-lasting nature. For starters, you can find cheaper options on the market that are made of low-quality rubber but these are not the best choices. Taking a step up, you will also see some models implement nylon. This is a lightweight, stretchy material that is quite strong. It can also help you achieve an ideal fit which is why it is used. Of course, you also have latex models which offer great stability but if you have latex allergies, you will want to avoid these.
Above everything else, however, there are two materials that tend to stand above the rest. The first is neoprene which is actually a family of synthetic rubbers. Not only will this maintain its shape with great efficiency but it will also work optimally in virtually any type of weather. And then you have silicone which a plethora of top-end models utilize. Most specifically, look for medical-grade silicones as these are tested for biocompatibility and are rated to be used for medical applications.

Fit

The model you pick should seal to your face but it should also not be too tight to be unbearable.

When you take into consideration the concept or gimmick of an elevation training mask, it makes sense that you want to find a model that can seal properly on your face. The reason for this is you do not want air to escape while you are training. At the same time, the fit should not be so tight and so secure that it is literally painful. You need to find a perfect balance but this can be tricky because some models are offered in various sizes (typically small, medium and large) and others are one-size-fits-all models. While it is always recommended to see what other users have had to say about the fit, you also need to assess the strap design.
Depending on the model you get, it may either have a single strap or multiple straps. In regard to which option is superior, single-strap masks will make it harder to achieve an optimal fit. This is especially true if the strap is not adjustable. On the contrary, several dual-strap designs will implement Velcro closure systems that allow you to have better control for the achieved fit.

Features

This section right here all comes down to the implemented resistance system.

The main feature to place all your focus on when you are buying a training mask is the resistance system. You see, the entire gimmick of this type of product is to simulate what breathing would be like at a certain altitude. Well, would you want that altitude to be fixed or would you want the versatility of being able to control it? Thankfully, most models on the market will offer adjustable simulated heights (or air resistance) and most of them will range between 2000 and 18000 feet. This sort of range is ideal if you have never used this type of product as it allows you to ease your way into it. Anywhere from 2000 to 5000 feet is not going to be too intense but if you start in the 10,000 range, it could be too much to handle right away.
However, you will only be able to simulate the altitudes that the mask allows. In other words, every model you buy will come with a fixed number of preprogrammed altitudes. Some models will come with 4, others with 16, and, rarely, you will see some climb to 24 or 32. Additionally, the dial or dials that will be used to change the resistance should be simple to use.

Stability

When it comes down to it, do you really want a mask that will not remain stable on your face?

This section touches on what was documented in the “fit” section but it brings some new light to the fold. One of the last things you want to deal with when you are working out with this type of a mask (as you are going to sweat) is for it to constantly slip down your face. This is enough to buy a new model as this inconvenience is one that many of you are not going to put up with (and rightfully so). How can a training mask combat this issue? Well, one of the ways is by implementing more than one strap (which was touched on earlier). With a strap over your ears, it can help to stabilize the mask when you begin to sweat profusely.
In addition, you can also look for additional features such as built-in grips and even sweat-wicking technology. At the end of the day, though, take some time to glance through user feedback to see what others have had to say. If numerous buyers have experienced pestering issues with slippage then you may want to pursue other options.

Ease of Use

When it comes to cleaning (which is what this section is all about), it will usually not be too much of a hassle.

Relatively speaking, most models on the market are not going to be too taxing when it is time to clean and wash them. For the most part, though, you should hand-wash them as the abusive nature of a washing machine can tear them up after too long. When doing so, you can probably get away with just using warm water and dishwashing soap (though another method will be documented later).
Really, the one characteristic (so to speak) that you can look for to make things a bit easier would be any model that can easily be disassembled. This is going to make things much easier when you need to wash your mask as it can allow you to clean each component separately.

Expert Interviews & Opinions

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expert tips icon
Materials

Without question, the quality of this type of product can come down to the materials that have been utilized. You can say this for several consumer products, though, so it should not be too much of a surprise to you. Now, while most options will either be made out of silicone or neoprene (at least the top-end options) there are other materials that you will stumble upon in your search, as well.

Fit

Let’s just say that most athletes and users are not wearing training masks because of how comfortable they are. That is not the point but the reality is the achieved fit you receive from any given model needs to be correct. The mask should seal to your face to prevent any air from escaping. But, you need to be aware that some options will come in different sizes and others will be one-size-fits-all.

Features

What you need to focus on here are the air resistance systems. Look, after a while, you will probably get tired and too accustomed to training at a specific simulated height. So, having the option to either raise or lessen that altitude is going to be ideal. Thankfully, most models on the market will come with multiple resistance levels and the more there are, the more versatile your experience will be.

Frequently Asked Questions

q: What are they used for?

a:

The reason this question is important to analyze is the fact that this type of product is actually designed to make your life harder. When you simulate a certain altitude, it is going to be more difficult for you to breathe and exercise. That is the point as you are actually training yourself. Then, when you go back to normal breathing you will notice how much of a difference it is and it will be easier for you. After a while training like this, you should see your stamina and endurance increase.

q: Is there a special cleaner available?

a:

Earlier, the cat was let out of the bag as we noted that another cleaning method would be documented. Well, it is time to address that right now. If you do not want to use dish soap and want to use a specialized cleaner then you can find some on the market. In fact, there are actually cleaning sprays that will deodorize your mask and remove all the dirt and grime present on it. To find this cleaner, your best bet is to look online as it will probably not be carried in retail stores.

q: Can you sleep with them on?

a:

Not only is the answer to this question a resounding yes but it may be believed that wearing a mask of this nature is better while you are sleeping than it would be while you exercise. It seems pretty farfetched to be true but when you think about the fact that some people spend long periods of time in low-oxygen environments, it begins to make sense that it could be beneficial for you to sleep in. So, go right on ahead but only simulate an altitude that your body can handle for such a period.

q: Are there any dangers involved?

a:

Due to the fact that training masks are restricting your breathing, it is easy to say that there are possible dangers involved. What you really need to do is ease into it. There is no reason to start off at the highest setting if you have never simulated or trained at higher altitudes before. Instead, start at the lowest setting and work your way up when your body becomes comfortable with the current simulated altitude. And, always give your body rest if you begin to feel lightheaded and winded.

Sources

  1. Site Staff, You have Question -We have Answers!, Article
  2. Site Staff, Best Elevation Training Masks , Review
  3. Site Staff, Best Training Masks Reviewed, Review