PUF (Polyurethane Foam) high volume air samplers are commonly used for the collection of airborne particulate and vapor contaminants, including volatile organic compounds and airborne pesticides. These samplers consist of a dual sampling module, which collects particulates on filter paper media and vapor elements on a piece of polyurethane foam located in the lower chamber of the sampling module. This design allows for simultaneous collection of both particulate and vapor samples.

The PUF high volume air sampler meets the requirements described in US EPA methods TO-4A, TO-9A, and TO-13A, which are used for sampling and analysis of volatile organic compounds in ambient air. The collected samples can be analyzed using a variety of analytical techniques, including gas chromatography and mass spectrometry, to determine the concentration and identity of the contaminants present in the sampled air.

The Polyurethane Foam Sampler is a high-volume air sampler that is commonly used for the collection of airborne particulate matter and volatile organic compounds. The sampler operates at flow rates between 125 and 250 liters per minute (lpm), and the flow rate can be controlled using either a manual motor speed controller or the Tisch Environmental PLUS controller. The airflow is pulled through a critical orifice using a brushless or brush-style vacuum blower motor assembly, which is used to control and calculate the ambient flow rate. The sampler is housed in a durable aluminum shelter that is designed to withstand harsh environmental conditions and provide reliable and accurate results. The collected samples are typically analyzed using specialized laboratory techniques to identify and quantify the presence of specific pollutants in the air.