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Air Monitoring filter

Air Monitoring filter

PTFE Membranes - PM 2.5 PTFE Membrane

GVS Life Sciences PM 2.5 PTFE Membrane is a high-purity, thin membrane for PM 2.5 ambient air monitoring. Each membrane is sequentially numbered with a chemically resistant polypropylene support ring. The low tare mass allows for accurate gravimetric determinations. No glues or adhesives are used in making the membranes and its stable design eliminates curling, keeping the membrane flat allowing for robot use.
PTFE Membranes - Polytetrafluoroethylene (PTFE) Membrane

PTFE (fine powder resin) is expanded into a 3-dimensional weblike structure called PTFE which creates billions of microscopic pores. This structure utilizes the inherent hydrophobic (waterresistant) and non-stick nature of PTFE to allow removal of particulate captured on the membrane surface. This allows air to pass easily through the membrane while collecting particulate as small as 0.1 micron on its surface. GVS PTFE disc are membranes used for general applications in the environmental monitoring.
Air Monitoring - Quartz Microfiber Filter

GVS Quartz microfiber filters are made with 100% pure quartz microfiber with zero binders. Exhibit greater chemical resistance at high temperatures than glass microfiber. Excellent choice for use in environments with extreme temperature up to 900°C and/or aggressive chemical exposure. Retention loading and air flow permeation similar to glass microfiber filters. Use wherever filters of the highest purity are needed.
Air Monitoring - Silver Membrane

Silver membranes are composed entirely of 99.97% pure metallic silver. They provide excellent chemical resistance and high temperature characteristics. Orientation of the membrane can be important. There is a distinct difference in surface characteristics with one side appearing shinier than the other. Use the Shinier side upstream for scanning electron microscopy. For all other applications and analytical work use the duller side upstream.
Air Monitoring - Glass Microfiber Filter

GVS Filter Technology offers a wide range of glass microfiber filters made of 100% borosilicate glass fibers without binders. The depth structure of the filter with its large surface area provides an outstanding impurity retention capacity combined with a low filter resistance. Glass fiber filters adsorb the finest particles down to 1 μm from liquids and < 1 μm in air and gases, as the electrostatic interaction between the glass fibers and gases is better than between glass fibers and liquids. Temperature resistant up to 500º C (with organic binders up to 180º C).

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