These face coverings, often called altitude or elevation masks, are training tools that claim to come with some benefits, like improving lung capacity and oxygen efficiency by restricting your ...

So I asked him about it. What he was wearing was an ETM, or elevation training mask: a device that restricts oxygen consumption while exercising. These masks are meant to simulate the effects of ...

The Homeless Health Care teams undergo 16 hours of initial training and run regular ... Delivering the oxygen through a mask. Homeless Health Care learned many of its overdose response strategies ...

JUDE Bellingham prowls around like Batman villain Bane during training. The England star, 21, was put through his paces yesterday by Real Madrid coaches who used a high-tech oxygen mask to track ...