Well, I get a little testy when folks ASSUME that the DX lasers are IR spewing pieces of crap, when they are not !
DX puts that NO IR FILTER disclaimer on their website, because they cannot validate if there is indeed one on there or not - heck, they cannot even validate the output power, so what does that tell you ? They are a reseller only, and mostly ignorant of the product they sell - but that is by design ! It is much easier for them to put that disclaimer up there, and be wrong, than it is for them to NOT put it up there, and have them be wrong !