no irritation at alli use it at times up to 2 hours at a time...

no irritation at all
i use it at times up to 2 hours at a time without a problem
i am still using it now from when they sent it to me
quite durable
maybe not good for more sales but more people may buy it for the durability
it is quite a simple item but amazing how it opens the nostrils and allows for more air
the revised ones that will come out will no doubt even be better
i think also that the snoring device will be a huge hit
cant wait for the finished product which is due for sales towards the end of the year
rewards for shareholders will be then IMO
the shareprice will gradually move upwards during this time and if all goes well by years end, that when i see a big price hike
my opinion only