Air flow test tubes can be used universally. Air flows are quick and easy to see.
In many fields, such as mining or industry, it is very
important to detect even the smallest air flows, in order to quickly and
reliably evaluate the possible diffusion of dangerous substances. With
the air flow test tubes, the source, direction and speed of the air flow
are visible immediately.
The air flow test tubes can be used until the “white smoke”
has completely disappeared. If the test is completed before all the
smoke disappears, the tube can be sealed again using the rubber cap
Smoking sulfuric acid is located in the tubes. When the top of
the tube is opened, a small rubber ball is used to pump air through the
tube. This creates visible white smoke, which is carried on any
existing air flows.