how bad is a pack of cigarettes a day Study: Light and Social Smoking Still Damages Your Lungs Lungs of Man Who Smoked
Description
They say things like, open the windows or buy an air freshener. Dont bother

But as a precaution, it is best not to vape around babies and children if you can avoid it

Chemicals in tobacco smoke damage DNA

A small number does not necessarily mean that there is an infestation as they may have simply found their way in in search of food and have not yet found a food source suitable for reproduction
The world is definitely on its head

caution (as in "stop, look, and listen") danger