Theres not enough long-term data to say for sure
Practical tips: Look for CADR or CFM specs and match them to your room (higher for small rooms that get heavy smoke)
Traditional public-access machines have largely been phased out
Among the compounds identified is nicotine, which is toxic to aquatic organisms and the nervous system.[2] , polycyclic aromatic hydrocarbons (PAHs)[3], heavy metals (cadmium, lead, arsenic)[4], tobacco-specific nitrosamines (TSNAs)[5] as well as several volatile organic compounds such as benzene or formaldehyde[6]These substances are classified among the persistent pollutants of greatest concern to human health and ecosystems
As for severe cases of nicotine allergy, it can cause an anaphylactic reaction
Nationwide, less than 5 percent of cigarette sales occurred in pharmacies in 2009, according to a study by the Center for Global Tobacco Control