Founded 1949. Proudly Made in USA by Americans!  We build them!


Staplex® Low Volume Air Samplers

  • Accurate samples collected from immediate vicinity
  • Line and Battery powered models
  • Indoor, outdoor and underground use
  • Compact, lightweight, portable
  • Excellent for fast and nuisance dust and asbestos air sampling
  • Made in U.S.A.

Models LV-1 and LV-2

Models BS and BSA

Models BS-S and BSA-S

Battery/line powered

Sampling Range

LV-1 and LV-2: 15-35 LPM (standard) or 3-25 LPM (optional)

BS, BSA, BS-S and BSA-S: 5-17 LPM

Principle of Operation

Staplex® Air Sampler draws low volumes of air through a filter by means of a rotary pump. Various types and sizes of filter papers, glass fiber filter media, filter cassettes and activated carbon cartridges are suitable for collection of samples. Flow rates are measured in liters per minute (LPM). Staplex Low Volume Air Samplers maximize flow rate and minimize sampling time for many air quality testing procedures, making them faster and more productive than personal samplers.

Flow Control

Fully adjustable flow control valve on graduated rotometer, settable over the full flow range. Accurate to ± 5% full scale.


Luer-lok fitting (standard) or tapered fitting (optional)

Analysis of Collect Samples

Gravimetric, taring, ashing, microscopic count, phase contrast or electron scanning microscopy, comparator, x-ray fluorescence, etc. depending on substance being sampled.


Portable, lightweight Low Volume Air Samplers highly effective for accurate samples from immediate vicinity of sampler for air pollutants; asbestos fibers; smoke and smog; radioactive particles; industrial, governmental, hospital, home and office health and safety tests; atmospheric conditions; mine air hazards; factory dusts; research and testing, etc. including chemical, radiological and toxicological analyses. Suitable for mobile or fixed position operation in normal non-explosive atmospheres.

Standard Models

Model LV-1, LV-2 Line-powered Models

LV-1: 110-125 Volts AC, 50-60 Hz, (15-35 LPM)

LV-2: 220-240 Volts AC, 50-60 Hz, (15-35 LPM)

Add "-L" for 3-25 LPM Flowmeter; "-T" for tapered inlet

Features: Staplex Models LV-1 and LV-2 are capable of continuous use. The sampling efficiency will cover up to 35 LPM of air with resistance pressure of 40 " WG (3 " Hg). Extremely compact and rugged.

Standard Components: Motor, pump, built-in flowmeter (rotometer), 1-1/8" diameter Filter Holder Assembly, convenient carrying handle.

Maintenance: Staplex® Models LV-1 and LV-2 Air Samplers are equipped with a brush type motor and special self-lubricating bearings, requiring a minimum of attention. A few drops of No. 1 0 motor oil should be put into the unit every 200 working hours in the two small holes provided for in the carrying handle. If used continuously over an 8 hour period, it should be oiled daily after each run.

Weight: 6 pounds (2.7 kg)

Dimensions: 4" x 4" x 7" (10.2 cm x 10.2 cm x 17.8 cm)


Model BS and BSA

Self-charging, Battery-powered Models

Complete with Ni-Cad batteries and built-in re-charger

BS: for 2 hour sampling time, recharge on 110-125 Volts AC, 50-60 Hz

BSA: for 2 hour sampling time, recharge on 220-240 Volts AC, 50-60 Hz

Model BS-S and BSA-S

Battery/Line powered Models


For either battery or AC Line operation; Complete with Ni -Cad batteries and built-in re-charger


BS-S:   for 2 hour sampling time on battery or continuous on line; run/recharge on 110-125 Volts AC, 50-60 Hz

BSA-S: for 2 hour sampling time on battery or continuous on line; run/recharge on 220-240 Volts AC, 50-60 Hz

Weight: 12 pounds (5.5 kg)

Dimensions: 4.5" x 7" x 8.5 " (11.4 cm x 17.8 cm x 21.6 cm)

Add "-T" for tapered inlet

Models with longer sampling time available by special order.

Features: Designed for use where electrical power is not available or practical, these Air Samplers are equipped with built-in self-charging Ni-Cad batteries and re-charger.

Standard Components: Motor, pump, flowmeter (rotometer), 1-1/8" diameter filter holder assembly, NiCad batteries and self-charging circuit, all designed and built into a small compact unit with convenient carrying case.


Re-charging: To recharge batteries, plug cord set into proper voltage outlet: 110-125 volts AC for Models BS and BS-S; 220-240 volts AC for Models BSA and BSA-S. Overnight (14 hours) charge is sufficient to restore full charge. Ni-Cad battery cell life is unlimited and can be recharged as many times as required. Sampler should not be operated during recharge.

Accessories for Low Volume Air Samplers

Filter Holder Assemblies: Additional Filter Holder Assemblies save time and help avoid filter contamination when taking a series of samples. Luer connection for quick changing.

SH18 Filter Holder Assembly, 1-1/8 " Diameter.

SH20 Filter Holder Assembly, 47 mm Diameter.

Filter Cassettes: Pre-loaded plastic styrene filter holders are very convenient and highly accurate. They are recommended for many OSHA and NIOSH sampling procedures, especially asbestos sampling. End caps prevent filter contamination before and after sampling. See below for most popular types. Other types also available.

Midget Impingers and Bubblers: For collecting vapors, dusts, and gases.

Inlet Accessories: Luer taper adapter, Flexible tubing, Cassette to tubing adapter.

Calibrator: Model CKLV direct-reading Calibrator for fast and accurate air flow calibration.

Staplex® Filters:


TFA448 Paper 1 -1/8"

  • Ashless.
  • Good efficiency for industrial dusts and for particulate matter size 1 0 microns and under to .01 micron. 77% retention of .3 micron particles.
  • Easily countable for Alpha particles, obtaining 70%
  • Count and penetration absorbtion of approximately 30%

TFAGF448 Glass Fiber 1-1/8" Very high retention of fine particles. 99-97% retention efficiency of .3 micron particles. Recommended wherever gravimetric weighing analysis is uses because of non-hygroscopic properties.

TFA247 Paper 47 mm Same specs as TFA448.

TFAGF247 Glass Fiber 47 mm Same specs as TFAGF448.

TFAC33708 Cassette 37 mm Pre-loaded 3 piece filter cassette with 0.8 micron mixed

Cellulose ester filter and cellulose support pad. Quality controlled for fiber background. For asbestos, cyanide, lead and sulfuric acid.

TFAC22508C Cassette 25 mm Pre-loaded 3 piece filter cassette, fully conductive with 2 inch (50 mm) extension cowl, 0.8 micron mixed cellulose ester filter, and cellulose support pad. Quality controlled for fiber background. For NIOSH Method 7400 asbestos sampling.


Staplex® Model EC-35 and EC-35A Econometric Air Sampler

EC-35: 110-125 Volts AC, 50-60 Hz, (up to 39 LPM free air)

EC-35A: 220-240 Volts AC, 50-60 Hz, (up to 39 LPM free air)

1/4 HP rotary vane air sampling pump. Includes carrying handle, adjustable needle valve with barbed inlet, 5" of clear tubing, grounded cordset with on/off switch.

Weight: 33.3 lbs. (15.3 kilos).




NOTE: Refer to sections on Staplex Asbestos Air Samplers and Personal Air Samplers for additional Staplex® Air Samplers, filters and accessories.