A Most Famous AntiSmoker

He considered them weak, filthy, and unhealthy.

He would not allow smoking in his office, and his generals were not allowed to smoke in the room where he was.

A former smoker himself, his dislike for smoking was so great, he was planning to ban it after he managed to capture the world. He did not ban it earlier because even he realized that it would not be a politically sound decision to do so while his soldiers were fighting the war for him.
Not being able to smoke would have distracted his men from the fight.

"We can make better use of our foreign currency than squandering it on imports of poison."[1]

"I made the acquaintance in Bayreuth of a business man ... There was a notice on his door: "Smokers not admitted." For my part, I have no notice above my door, but smokers aren't admitted."[2]

"When I go into an inn where people are smoking, within an hour I feel I've caught a cold. The microbes hurl themselves upon me! They find a favourable climate in the smoke and heat."[3]