Second-hand smoke is very dangerous for anyone exposed to it, but it is particularly dangerous for children (further specific details are given within Smoking Among Young People under Lifestyle Factors under Children and Young People)
Int J Epidemiol 49(6):20412050 Calvaresi V, Escuder D, Minutillo A, Bastons-Compta A, Garca-Algar O, Palls Alonso CR, Pacifici R, Pichini S (2016) Transfer of nicotine, cotinine and caffeine into breast milk in a smoker mother consuming caffeinated drinks
Sealing will enhance its appearance and protect it from damage, ensuring it lasts for years
The performance starts out with, what I hope, is an exaggeration of Shelleys grandmother in the 70s ignoring the incessant phone calls, grumbling about the state of the nation while reading the paper, chain smoking, and yelling into the void at her unseen husband