VeriAir® Flex Sample Bags

VeriAir Flex® Sampling Bags

Nextteq® VeriAir Flex® 

Manual-Inflating Sample Bags

(Tedlar® or Foil)

A VeriAir Flex® manual-inflating sample bag with feature call-outs.


Key Features

  • Foil or Tedlar® Bag Options
  • Various Sizes Available  - NEW 10L
  • Easy to Use
  • No Pump Required
  • Capture Sample for On-The-Spot Results
  • Send to Laboratory for GC Analysis
  • Always Ready
  • Built Tough
  • Made in U.S.A.


VeriAir Flex® manual-inflating bags feature a patented design that allows users to directly collect air or gas samples without any need for an external pump or other sampling equipment.  The VeriAir Flex® bag uses a patented integrated handle design that can be used for both filling the sample bag and removing or flushing a gas sample from the bag. 


Non-technical personnel can easily and inexpensively collect an atmospheric grab sample using the VeriAir Flex® Sample Bags. The bags are simple to use, intrinsically safe and are available in various sizes and materials (Foil or Tedlar®) and various valve materials (Ni or Al). One can perform detector tube measurements afterwards at a time and location that is convenient. Foil sample bags can be air shipped for analysis.


The VeriAir Flex® manual-inflating bags, becoming a standard of choice of professionals, are manufactured by Nextteq International LLC in the USA, and offer: 

  • better technology with a patented design with no need for external pump. 
  • better quality with superior clean bags for reliable, safe sampling.
  • better value in price, high-level support, and product longevity.


A man is taking an air sample using a VeriAir Flex® Tedlar® Sample Bag.

VeriAir Flex® 4-Liter Tedlar® Bag P/N 31047

VeriAir Flex® 1-Liter Tedlar® Bag P/N 31019 


VeriAir Flex® Tedlar® Sampling Bags

Key features:

  • Referenced in many EPA methods (e.g. T015)
  • Quality DuPont Tedlar® film for sample integrity and valid data
  • Good stability for CO, CO2, CH4, SF6, VOC and complex organic mixtures
  • Not recommended for H2 or He
  • Polypropylene valve for economy and light weight
  • Two sizes available: 1 liter and 4 liter
  • Valve is comprised of polypropylene



VeriAir Flex® manual-inflating bags feature a patented design that allows users to directly collect air or gas samples without any need for an external pump or other sampling equipment. The VeriAir Flex® bag uses a patented integrated handle design that can be used for both filling the sample bag and removing or flushing a gas sample from the bag. 


  • Gas Detector Tube and Pump System

    P/N NX-1000-130


    Learn more
    • A man is taking an air sample using a VeriAir Flex® Foil Sampling Bag.

    VeriAir 5-Liter Sample Bag (Al Valve) P/N NX90237

    VeriAir 1-Liter Sample Bag (Al Valve) P/N NX90236 


    VeriAir 10-Liter Sample Bag (Ni-Brass Valve)

    P/N NX90520 VeriAir 5-Liter Sample Bag (Ni-Brass Valve)

    P/N NX31029 VeriAir 1-Liter Sample Bag (Ni-Brass Valve) P/N NX31000 


    VeriAir Flex® Foil Sampling Bags

    Key features:

    • More durable and less susceptible to damage during shipment in an unpressurized airplane cargo hold
    • Light/moisture proof – protects light-sensitive compounds
    • Low VOC and sulfur backgrounds
    • Good storage stability for low ppm & high ppb level VOCs
    • Good stability for low molecular weight compounds such as CO, CO2, CH4, SF6
    • Good 48-hr. stability for H2S, H2, COS, CH4S, C2H6S
    • Two sizes available: 1 liter and 5 liter 
    • Nickel-plated brass valve


    The VeriAir Flex® foil sample bags are available with either the economical nickel coated brass valve or the more inert and less reactive aluminum valve. The aluminum valve configuration has been shown to keep your samples stable for longer hold times, even those samples that contain sulfur compounds such as H2S and mercaptans. Both types of polyolefin/aluminum valve on the VeriAir Flex® sample bags are proven to be durable enough to maintain their integrity, even if exposed to extreme atmospheric pressure drops and are therefore ideal for overnight air shipment for rush analysis. 

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