vanilla cavendish pipe tobacco Admiral's Choice (8oz Bag) Prince Albert Soft Vanilla Cavendish

This is what replicates the sensation of smoking

"Nicotine and the cardiovascular system: unmasking a global public health threat"

In the long term, smoking narrows the airways and causes damage to the lungs that limits the amount of oxygen in the body at all times." While the cardiovascular system is worst hit, there is some evidence that long-term smoking also leads to a decrease in muscle strength and volume of muscle fibres, affecting both speed and power

The sensor outputs an analog voltage that varies with the gas concentration

They dont have to be huge, just use a real battery that cranks 3.7v or higher

Something to hold in our hands while we lingered with company