Do I really need the filter support with a 47 mm disc?

It is recommended. Without the support, the vacuum can pull the disc into the outlet port or crease it at the sealing ring, which changes the exposed filter area and biases the collected mass.

Which filters does the support take?

It is made for 47 mm discs, and it is used with both the glass fiber filter paper FP-02 and the PTFE membrane filter paper FP-03.

Which samplers is it used in?

It fits the filter holders of PM10 and PM2.5 low volume air samplers, including trains that use an impactor or cyclone ahead of the holder.

Does the support need maintenance or replacement?

It has no moving parts and needs only to be inspected and cleaned between campaigns. It is a low-cost consumable item, so most users keep a spare in the filter stock.

How is it supplied and what is the lead time?

It weighs 0.02 kgs, packs into 6.5x6.5x2cm and ships from stock under ERP number 96085-000-000, so it can be added to a filter paper order without delaying it.

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Filter Support 47 mm for Low Volume Air Sampler

Filter Support 47 mm for Low Volume Air Sampler

Model FPS-01 is the support screen that sits under a 47 mm filter disc inside a low volume filter holder. It takes the pressure difference across the paper so the disc stays flat while air is pulled through it. Because a filter that sags or tears changes the effective collection area, this small part protects the accuracy of the sampled mass.

Product name:	filter support for low volume air sampler
Model Number:	FPS-01
Main Material:	plastic and steel
Size:	diameter 47 mm
Used for:	PM10 and PM2.5 low volume air samplers
Weight:	0.02 kgs
Packing meas.:	6.5×6.5x2cm
ERP NO.:	96085-000-000
Shipment:	From stock
Warranty:	not applicable to consumables

What the Filter Support Does

The support screen sits directly under the 47 mm filter disc inside the filter holder. When the pump runs, the pressure on the downstream side of the disc falls below ambient pressure, and a thin glass fiber or membrane filter would sag into the outlet or tear at the point where it is clamped. The screen carries that load, so the disc stays flat and the exposed area stays constant.

It is a passive part with no moving components, and it needs no adjustment once the holder is closed.

Why a Small Part Matters to Data Quality

Every result from a low volume sampler depends on the assumption that the filter collected the particulate from the air that passed through its full exposed area. If the paper sags, part of the flow can bypass the disc or reach the downstream tubing, and if the edge tears, particles are lost entirely. Neither fault is visible once the filter is removed for weighing, which is why the support is normally specified as part of the sampling train rather than treated as an optional extra.

Where It Is Used

The FPS-01 is used in low volume samplers that measure the PM10 or PM2.5 fraction, including trains that use a PM2.5 impactor or cyclone ahead of the filter holder. It works with both the glass fiber discs and the PTFE membrane discs in the same 47 mm format, so a laboratory that analyses by mass on one campaign and by chemical methods on the next still uses the same support screen.

Ordering and Availability

The support weighs 0.02 kgs and packs into 6.5×6.5x2cm. It ships from stock under ERP number 96085-000-000 and is normally ordered together with the filter paper, so that a complete set of consumables arrives in one shipment. As a consumable item it carries no warranty, and distributors can order it in quantity alongside the discs.

Keeps the Disc Flat Under Vacuum

Air is drawn through a 47 mm disc at a pressure difference that is enough to pull thin media out of shape. The support screen backs the whole area of the disc, so the paper cannot be drawn into the outlet port or crease at the sealing ring during the run.

Protects the Measurement

A sagging disc exposes more of the downstream path and a torn edge lets particles past the filter entirely. Either fault biases the collected mass and the sampled volume in a way that is hard to detect after the fact. The support removes that failure mode from the sampling train.

Fits PM10 and PM2.5 Low Volume Samplers

The screen is made in the standard 47 mm format from plastic and steel, so it drops into the filter holder used by PM10 and PM2.5 low volume samplers and works with the impactor and cyclone assemblies of that platform.

Small, Light and Inexpensive

At 0.02 kgs and a packing measurement of 6.5×6.5x2cm, the support is a low-cost item that is easy to include with a routine filter order. Keeping a few spare screens with the filter stock means a worn or lost screen never delays a sampling campaign.

Ships from Stock

The FPS-01 is held under ERP number 96085-000-000 and ships from stock, so it can be added to any filter paper order without extending the lead time. Distributors normally keep the screen on the same shelf as the 47 mm discs, so a complete set of consumables can leave the warehouse in one carton. As a consumable item it carries no warranty.