Yes it does make it less harmful for the users of the cigarette, but still it is HARMFUL since nicotine can still reach the blood vessels and the lungs although it is less concentrated. Furthermore the filter doesn't protect the indirect smoker or the non smokers who happen to be in the same room with a smoker. So that's why smoking is more harmful to those who don't smoke because the gas goes directly inside their bodies without even being filtered first. So this is rather unfair on there part. So I hope next time someone smoke they think of others around them and they should smoke alone.