Vayomtech VTM 650 is a manual method for sampling fine particles (PM2.5 fraction) andis based on impactor designs standardized by USEPA for ambient air quality monitoring.Ambient air enters the VTM 650 through an omni-directional inlet designed to provide a clean aerodynamic cut -point for particles greater than 10 microns. Particles in theair stream finer than 10 microns proceed to a second impactor that has an aerodynamiccut point at 2.5 microns. The air sample and fine particulates exiting from the PM2.5impactor are passed through a 47mm diameter Teflon filter membrane that retains theFPM. The sampling rate of the system is held constant at 1m3/hr by a suitable criticalorifice. The system uses a continuous rated, oil free pump for providing suction pressure.The standard system is supplied with a Dry Gas Meter to provide a direct measure of thetotal air volume sampled. The sampling rate of the system is held constant at 1m3/hr by a suitable critical orifice. The system uses a continuous rated, oil free pump for providing suction pressure. The standard system is supplied with a Dry Gas Meter to provide a direct measure of the total air volume sampled.

• 1 Year Manufacturing Warranty
• Specially designed PM10 and PM2.5 Impactors based on US EPA standard designs
• Imported Vacuum Pump with a low noise
• Critical Orifice maintains constant sampling rate of 1 m3/hour
• Light Weight and portable only 15 Kg
• Rugged Design, Long operational life with smooth functioning.
• Particle Collection on 47mm diameter GFA Filter Membrane