Mothballs are made from a chemical, I don't recall what the name is... Anyways, this chemical off-gasses into the air and it is toxic to breathe.
Because modern refrigerant is havier than air and replace the air in a room. The air you breath must contain at least 9% oxygen. If it does not, you will lose consciousness. Sang lee
Mechanical Ventilation System
mechanical
Intercostals.
Gasoline boats built after July 31, 1980, must have a ventilation system that meets specific standards to prevent the accumulation of explosive gasoline vapors. This typically includes both natural and powered ventilation systems. The powered ventilation must operate automatically and be designed to effectively exchange air in engine compartments. These regulations are intended to enhance safety and reduce the risk of fire or explosion.
Mechanical
15%
must have a mechanical ventilation system (EQ-17)
the naphthalene in mothballs is supposed to repel fabric eating moths and silverfish when clothing is stored for long periods of time (such as the summer season), apparently it is an old wives tale. Mothballs are a pesticide product that contain either naphthalene or paradichlorobenzene as active ingredients. Both of these chemicals are toxic fumigants (which means they volatilize into the air) and must be present in high concentrations to be effective. This is a problem. Concentrations high enough to be effective for pest control can be dangerous for anyone exposed to them. Mothballs can seriously impair indoor air quality. In fact, the odor of mothballs can be detected at a few parts per billion in the air. (One part per billion is about several drops of water in an Olympic-size swimming pool.)
Mechanical
PORTABILITY: Money must be easily carry around to long and short distance.
Lacquer thinner is the easiest way that i have found. You must have adequate ventilation and wear a respirator.