gases in cigarette smoke 12.4 Emissions from tobacco products Poster: What's in Cigarette Smoke

"The question was whether vape containing nicotine had negative effects on the ability to clear secretions from the airways similar to tobacco smoke," senior author Matthias Salathe, M.D., chair of internal medicine and a professor of pulmonary and critical care medicine at the University of Kansas Medical Center explained in a news release

It forms naturally in the upper atmosphere and close to the ground after lightning

Ethics declarations Competing Interests The authors declare that they have no competing interests

Pin Function VCC Power supply input connect to +5V GND Ground DO Digital output TTL HIGH when gas exceeds threshold AO Analog output voltage proportional to gas concentration (05V)

Dimensions: Height: 3.5"/89mm

However, in dusty environments or homes with pets, the filters may need to be replaced sooner, and the impactors may need to be cleaned more often