Third hand smoke issue

Anyone here is dealing or dealt with third hand smoke issue coming from own parents? My parents are helping me with my newborn during confinement and also when I’m going back to work. My dad is a heavy smoker and loves to smell my newborn head and kiss his mittens and I am very concerned of the residual smoke on him would stained on my newborn. However it is very difficult to talk to my dad about this as he is a very dominant man and me and my siblings all grew up healthy under this environment - so he might not understand the concern of third hand smoke and may feel offended. So I turned to my mom hoping she could help me to convince my dad to stay away from my newborn until the smoke residual subside, but it is disappointing that she don’t see it a concern as well. Today I use another approach to tell him not to kiss newborn’s mittens because he has the habit of putting it in his mouth and that is quite unhygienic considering there is a virus outbreak now - but my dad didn’t give me any response. Aside from that, my parents always think I am a hygiene and control freak so making me extra difficult to talk and convince them to be aware of third hand smoke. I can say but they can don’t listen. And worse is I still need their help to take care of my baby.... So comes my question....has anyone encounter situation like this whereby your newborn is in contact with third hand smoke all the time but turn out to be fine?