High Volume Air Sampler for Outdoor PM10, PM2.5 and TSP Monitoring
This page covers the T4 AIR SAMPLER high volume air sampler range built in Foshan, Guangdong for outdoor ambient monitoring. A high volume unit pulls about 1.13 m3/min of air through a size selective inlet and collects particulate on an 8 x 10 inch filter for gravimetric analysis. Buyers will find PM10 and PM2.5 inlet heads, MFC and VFC flow controlled assemblies, TSP cabinets, filter holders and blower housings, plus guidance on choosing a configuration, materials, calibration, packing and OEM ordering.
What a High Volume Air Sampler Is and How It Works
A high volume air sampler is an outdoor instrument that pulls a large, steady volume of ambient air through a size selective inlet and leaves the suspended particulate on a filter for later weighing. Because the flow is high, one unit collects enough mass in a normal sampling period for gravimetric analysis on a standard 8 x 10 inch sheet.
The classic high volume air sampler draws about 1.13 m3/min (40 CFM). Air enters through a shielded inlet, passes the size selector, crosses the filter, and is pulled by a blower through the motor housing before discharge. The inlet head sets the size fraction and the flow control system decides whether the recorded volume can be trusted.
High Volume Air Sampler Models and Configurations We Build
Our range covers inlet heads, complete housings and the sub-assemblies that support them. The PM10-HV inlet head selects the PM10 fraction, and the PM2.5-HV inlet head uses 40 stainless steel nozzles to reach a 2.5 micrometer cut. Both mount to the same cabinet and filter holder families, so one platform can cover several size fractions.
Complete assemblies are supplied as PM10-HV ASSEMBLY and PM2.5-HV ASSEMBLY with the metal housing included, in mass flow controlled (MFC) or Venturi tube volumetric flow controlled (VFC) form. TSP builds use a roofed cabinet, with CB-HV as the base cabinet and CB-HV-02 as the TSP cabinet with roof. Support parts include the PM10-FL and TSP-FL filter holders, PM10-FL-BM and TSP-FL-BM filter and motor housing sets, the VFC-FL-BM set, BMH01 and BMH02 blower motor housings, the Venturi tube volumetric flow controller, a PUF inlet for semi-volatile organic compounds, a snap cover and filter paper cartridge set, 120 V and 240 V blower motors, a brushless motor, MFC and VFC control boxes, and 8 x 10 inch glass fiber filter paper at 100 sheets per box.
| Model family | Flow control | Typical duty |
|---|---|---|
| PM10-HV ASSEMBLY | MFC or VFC | Routine PM10 networks |
| PM2.5-HV ASSEMBLY | MFC or VFC | Fine particulate programs |
| CB-HV-02 TSP cabinet | MFC or VFC | Total suspended particulate sites |
How to Choose: Size Fraction, Flow Rate, MFC versus VFC and SKD versus Assembled
Choose the size fraction the program reports, then the sampling volume. High volume units are used where a large filter load is needed for gravimetric work or for a second analysis, while low volume units suit compact shelters and 47 mm media. Check the local method before deciding, because the inlet and the flow rate are usually fixed by the standard you report against.
Flow control is the next decision. An MFC unit measures mass flow and corrects electronically for temperature and pressure, which keeps the recorded volume stable as conditions change. A VFC unit holds volumetric flow with a Venturi tube, which is simple and rugged and matches the habits of operators trained on volumetric methods. Both are supported by our housings and control boxes.
Finally, decide how complete the unit should be. Most of our exports ship as an SKD metal housing set: the buyer installs their own electronic parts, which lowers freight and duty and lets the finished sampler match a local specification. A fitted assembly is available where a ready to run unit is preferred. Common requests include:
- a PM10 or TSP inlet with a matched filter holder
- an MFC or VFC blower housing with a 120 V or 240 V motor
- a roofed cabinet and base cabinet for a fixed station
- a PUF inlet for semi-volatile organic compounds
Materials, Finish and Manufacturing Process
Housings and inlet parts are made in aluminum alloy and stainless steel. Aluminum alloy keeps a cabinet light enough for a two person rooftop install, while stainless steel is used where a part meets the sample stream or sits in coastal air. The standard finish is high brushed and clear anodized, which resists corrosion without a paint layer that can chip.
Production uses metal spinning for round inlet parts, machining for nozzle plates and threaded interfaces, and laser cutting and bending for cabinet panels and brackets. Spinning gives a smooth internal surface in the sample path, and machining holds the 40 nozzle pattern of PM2.5 inlets to a consistent geometry. Parts are trial fitted before packing so an SKD set assembles without field rework.
Installation, Calibration and Maintenance
Install on a rooftop or station platform with the inlet at breathing height and clear of walls, vents and exhausts. Bolt the cabinet to a base or mast, orient the inlet away from the prevailing wind, and size the power feed for the motor voltage you ordered. The inlet, filter holder and blower section should be level, and the filter face must seal cleanly.
Calibration follows the flow control type. MFC units are checked against a primary or transfer standard flow meter and the controller is adjusted until indicated flow matches measured flow across the working range. VFC units are verified by confirming that the Venturi holds the design flow and by checking the pressure taps and tubing for leaks. Flow records, filter lot numbers and sampling times are what make a gravimetric result defensible.
Maintenance is simple but must be regular. Inspect the inlet and impaction surfaces for buildup, replace gaskets and seals when they harden, and confirm that the blower runs without vibration. Filters are conditioned and weighed before and after exposure and handled with flat forceps, and the 8 x 10 inch glass fiber sheets are stored flat and dry.
Applications and Industries
These units serve environmental agencies running national and regional networks, air monitoring integrators building stations for municipal and industrial clients, and research groups working on dust and combustion aerosol. Cement, mining, steel and port operators also use them for boundary monitoring, where a TSP or PM10 record supports dust management and community reporting.
Packing, Shipping and Lead Time
SKD housing sets are packed so panels, spun parts and nozzle plates travel without contact damage, with inlet heads in their own cartons. Cartons are sized for sea and air freight and marked to match your packing list. Standard models ship from stock, and OEM versions with a custom housing, nozzle pattern or finish take about 10 to 15 days before dispatch.
OEM, ODM and How to Order
We manufacture for distributors and integrators who sell under their own brand. OEM work covers housings, inlet heads, nozzle plates, filter holders and cabinets built to your drawing, with your badge, finish and packing. Send the size fraction, flow control type, motor voltage, finish and the electronic parts you plan to fit, and we will confirm the matching model.
High Volume Air Sampler Available from T4 AIR SAMPLER
PM10 High Volume Air Sampler Inlet Head
PM10-HV inlet head with a 10 micrometre cut-off for high volume PM10 sampling.
PM2.5 High Volume Air Sampler Inlet Head
PM2.5 head with 40 stainless steel nozzles for fine particulate high volume sampling.
PM10 High Volume Air Sampler Metal Housing
Complete PM10 high volume air sampler housing set: inlet, cabinet, filter holder and motor housing.
PM2.5 High Volume Air Sampler Metal Housing
PM2.5 high volume air sampler housing assembly ready for your own electronic parts.
Air Sampler Base Cabinet for PM10/PM2.5 Systems
Base cabinet for PM10 air quality monitoring, supplied without electronic parts.
TSP High Volume Air Sampler Cabinet (With Roof)
TSP cabinet for outdoor air sampling equipment, with roof for weather protection.
TSP Filter Holder - Outdoor High Volume Air Sampler Part
TSP filter holder for high volume dust sampling with 8 x 10 inch filter paper.
PM10/PM2.5 Filter Holder for Outdoor Air Sampler
PM10 filter holder for air sampler systems, stainless steel with aluminum cover.
Snap Cover and Filter Paper Cartridge Set
Snap cover and filter paper cartridge set for high volume air sampler PM2.5 and PM10 work.
Filter and Motor Housing Set for PM10/PM2.5
Filter and motor housing set for high volume air sampler cabinets, electronics not included.
Filter and Motor Housing Set for TSP
TSP filter and motor housing set for outdoor air sampling equipment.
Blower Motor Housing for Mass Flow Air Sampler
Blower motor housing BMH01 for mass flow high volume air sampler, MFC type.
Blower Motor Housing for Volumetric Flow Air Sampler
Blower motor housing BMH02 for volumetric flow air sampler, VFC type.
PM10 High Volume Air Sampler with MFC
PM10 high volume air sampler with a mass flow controller for constant mass flow sampling.
PM10 High Volume Air Sampler with VFC
VFC air sampler with Venturi tube volumetric flow controller holding 1.13 m3/min.
PM2.5 High Volume Air Sampler with MFC / VFC
PM2.5 high volume air sampler available with MFC or VFC flow control.
TSP High Volume Air Sampler
TSP air sampler for total suspended particulate and dust monitoring, with roofed cabinet.
Volumetric Flow Controller (Venturi Tube)
Volumetric flow controller with no moving parts, holding 1.13 m3/min in an air sampler.
VFC Filter and Motor Housing
VFC filter and motor housing set, matched to the Venturi tube for volumetric flow sampling.
PUF Inlet for High Volume Air Sampler
PUF inlet air sampler accessory for semi-volatile organic compound sampling.
Blower Motor 120V / 240V for Air Sampler
Air sampler blower motor, 1062-1080 W, in 120 V and 240 V versions.
Brushless Blower Motor for Air Sampler
Brushless blower motor with no carbon brushes, running continuously for more than 7 days.
MFC Control Box for High Volume Air Sampler
Air sampler control box with 4000 W SCR adjuster and 7 day programmable timer, MFC type.
VFC Control Box for High Volume Air Sampler
VFC control box with SCR power adjuster and weekly timer for volumetric flow samplers.
Glass Fiber Filter Paper 8 x 10 inch
PM10 filter paper, ultrafine glass fiber, 8 x 10 inch, 100 pieces per box.
Frequently Asked Questions
What flow rate does a high volume air sampler use?
A high volume air sampler normally draws about 1.13 m3/min, which is 40 CFM. That flow lets one unit collect enough particulate on an 8 x 10 inch filter for gravimetric analysis within a normal sampling period. Our MFC and VFC housings are both built around this flow rate.
Should I order an MFC or a VFC version?
It depends on the method you report against. MFC units correct mass flow for temperature and pressure electronically and hold the recorded volume steady, while VFC units hold volumetric flow with a Venturi tube and are mechanically simple. Both use the same housings, so the choice usually follows local practice and the maintenance skills available in the field.
Can I buy only the inlet head or the housing?
Yes. We supply PM10-HV and PM2.5-HV inlet heads, filter holders, blower motor housings, and filter and motor housing sets on their own. Many buyers start with a housing set and add their own electronics locally. Tell us the size fraction and the flow control type and we will confirm the matching parts.
What does an SKD kit include and how much assembly is needed?
An SKD set is the metal housing package: cabinet panels, spun inlet parts, nozzle plates, holders and brackets, trial fitted at the factory. The buyer installs the blower motor, timer, flow controller and filter media. Assembly is mechanical and needs no specialist tooling beyond ordinary hand tools.
What is the lead time for standard and OEM orders?
Standard models ship from stock. OEM versions with a custom housing, nozzle pattern or finish take about 10 to 15 days before dispatch. Sea freight to most overseas ports adds transit time after that, so tell us the port and the preferred incoterm when you request a quotation.
Send us your flow rate, size fraction and site conditions - we will recommend the right configuration and quote within one working day.
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