The tartar tends to be more porous than the enamel and absorbs the nicotine stains and the tar in a quick fashion
In general, larger filters with more carbon may last longer, but they can also feel more restrictive
To manage the taxation policy and sales, governments fix the minimum quantity or fixed pack size
One complaint is that this comes with no mounting hardware
Recent RISD grad (alma mater shout out), Erik Askin recently published "Designed to Annoy: A theoretical look at designing inefficient packaging", a thoughtful twist on the ubiquitous cigarette package
Pros: Excellent low-temperature performance Quite affordable Cons: Inside smelled horrible upon arrival, and we could not get rid of the smell Travoca Rigel+ 45 Dual-Zone Cooler An attractive, robust cooler that performed admirably, held back by its absurd price point