As to the sample that you required, they all have the same machine types. We can give you an M5 full mask, which can be tested by connecting directly to the machine.

关于你要的样品是这样的，机器都是一样的，可以提供一个M5全面罩给你，接上机器就可以测试了。

youdao

We had to wear white suits to protect against radiation, a full respirator mask, two pairs of gloves, and plastic booties over our shoes.

我们必须戴好呼吸面罩，穿上一套防辐射的白色防护服，戴上两副手套，还要在鞋子外面套上塑料靴。

youdao

In this case, a full-face respirator is called for. It provides a clear face mask or clear eye pieces that protect the eyes as well.

这种情况下需要用到全面罩呼吸器，可以提供透明面罩或者只是眼部透明，就同时保护了眼睛。

youdao

Maybe you're daring enough to rock a full ski mask.

WSJ: Jason Gay: Your Outdoor Sports Survival Guide

But before commuters dash for the mask (and one expert recommended a full facial respirator as the only virus-proof measure), there is cause for optimism.

BBC: NEWS | UK | Magazine | Bugs get the train too

Its presentation (by museum designer Keith Crippen and his team) successfully captures the mix of craftsmanship, functionality and drama inherent in samurai armor and weaponry, at times drawing our attention to a striking helmet in the shape of a rising wave or a horse mask with horns and flaring nostrils, at other times wowing us with full sets of armor.

WSJ: Dressed to Kill in Peacetime | Samurai! | Museum of Fine Arts, Boston | By Lee Lawrence