Also, because full-face masks do not allow you to dive down, it might be challenging to capture good images and footage in deeper water. Score: 8/10. Price: £25 | Check price on iClique.

Full-face snorkeling masks can indeed be dangerous, and that is due to the increased risk of hypercapnia (elevated CO2 levels) and hypoxia (low oxygen levels) during use, according to a recent study.

Discovering the mesmerizing world beneath the waves can be a life-changing experience, but traditional snorkeling equipment ...

But not all snorkeling masks are made equal, and in fact, some of them are downright dangerous. We're talking about those full-face snorkel masks that cover your eyes, nose, and mouth all in one.

Hoff says for some years now, Aaron's Dive Shop has decided to not carry full faced masks - to either sell or to rent to customers. "The reason they use for them being unsafe makes sense to us ...