i cant understand why people are saying that this product cant...

i cant understand why people are saying that this product cant be re used
i had the previous proto type sent out to me many months ago for trial and have still been using it, washing it out after each use
its still intact and working beautifully
i am mainly a runner and walker and use this item the majority of times
it has allowed me to increase my lung capacity by at least 35% and i swear by the product
my nostrils are totally opened and airflo is amazing and this was the proto type
i would love to see the improvements they have made now
so i cant understand why it would only be used once as
this product can be continually used unless you have a problem with cleaning it
as already said, i have been using it since first launch
hurry up and get this to market is all i am saying