The low pressure model to be used only with an ambient air pump capable of providing 7-15 cfm of grade D breathing-air at 8 to 15 psi.  Choose the .pdf file included on this page for information on the Clemco ambient air pump.

An economical solution to the higher quality Apollo 600 or 60 helmet.  The Apollo 20 is a single shell helmet with a simplified cooling pattern inside the helmet.  Ideal for people working to support the individual actually doing the sandblasting.