Polyurethane Foam (PUF) Pesticide Samplers
What is a PUF high volume air sampler?
The PUF high volume air sampler collects airborne particulate and vapor contaminants. These samplers are typically used to collect volatile organic compounds and airborne pesticides. The system incorporates a dual sampling module to collect airborne particulates onto the filter paper media and the vapor elements onto a piece of polyurethane foam in the lower chamber of the sampling module. These systems are designed to meet the requirements described for sampling using US EPA method TO-4A, TO-9A, and TO-13A.
How does a PUF sampler work?
The Polyurethane Foam Sampler is classified as a high volume air sampler for the collection of airborne volatile organic compounds and particulate matter. This sampler operates between 125-250 lpm and uses either a manual motor speed controller or the Tisch Environmental PLUS controller to control the flow rate. The flow is pulled through a critical orifice with either a bruhless or brush style vacuum blower motor assembly which is used to control and calculate the ambient flow rate. Housed in a robust aluminum shelter, the PUF sampler is built to withstand harsh conditions and provide accurate and reliable results.
Standard PUF air samplers use a manual motor speed adjustment device to control the motor speed. These instruments are housed in an anodized aluminum shelter that houses the timer , magnehelic gauge, vacuum motor, elapsed time indicator, flow venturi, and dual sampling module.