These Parallel Particle Impactors are used for respirable crystalline silica and dust sampling.

• They contain preweighed PVC filters allowing the customer to request respirable dust.
• They are disposible.   So no cleaning required.  (The original PPIs were designed to be reusable, but customers preferred disposable.)
• OSHA lists them in their final rule for silica.
• These impactors are designed for a a flow rate of 2.0 L/min.  Different flow rates are possible with different impactors, but Assay Technology does not stock them.
• No cyclone required.

Due to short expiration dates, these are not kept in stock.  So order in advance.

The dust analysis will be performed at AT Labs, however the silica analysis will be performed by a subcontracted laboratory.