- water is not allowed to be used to clean the lenses. How the heck can I clean it when it's starts to get oily?
Use water, just be super careful and don't expect anything to be water resistant. My #1 concern for the longevity of any of these HMDs is how scratch resistant the lenses are, so I make sure to never touch the lenses with dry cloths. I use a warm damp cloth with the Rift/Vive, sometimes a very mild alcohol solution if needed, but ideally I simply try to avoid the lenses getting dirty in the first place. I've only had to clean the Rift lenses once or twice since I've gotten it. The Vive more so since it's gotten a lot more traffic with greasy clumsy friends.