What is a Filter Screen
A filter screen is a vape part often found inside of the vape mouthpiece, specifically with dry herb vaporizers, although many wax vapes have some sort of filter as well, often built in. But filter screens can also act as barriers, specifically with herb vapes, to separate the herb from a hot coil. The separation creates convection versus combustion.
Metal Mesh Filter Screens
Dry herb vaporizers are very popular, and every single one has a filter screen. So with that said, most filter screen needs are associated with herbal vapes and they happen to be metal mesh screens. They are fairly standard although the exact hole size created with the mesh can vary by very small amounts.
This is less of a filter and more of a barrier. The glass screens are common for use with combustion vapes. The glass create a barrier between the hot coil and the herbs. A hot coil will turn herb to ashes and create smoke along the way. However, the glass screen allows the hot air to heat the herb which creates vapors, a process called convection.
Not nearly as common and only found within very few vaporizers. The AGO vaporizer utilizes this type of filter which helps to keep the small particles away, plus the ceramic has its benefits versus metal screens.
There are vape mouthpiece out there with the filter screen efficiently built in. The screen does not come out and never needs to be replaced. When clogged, simply soak the entire piece to clean and clear the debris from the screen.