This is the second time I buy this ink set. This is such a phenomenal deal and I swear the ink lasts longer than the original HP ink cartridges I've bought. I will say that when I first bought this set I noticed a strong odor right after my print jobs, I think more on color pages I would. I haven't noticed it yet, but I've only done one print job (35 pages, b/w) and it wasn't a strong smell from this second purchase. As they say, I will continue to buy this product! Such great quality and price!