Impinger Bubbler for Air Sampling

For collecting various airborne gases, vapors and particulates using a high flow sampling pump.

Gilian Impingers are special glass tubes designed to collect airborne contaminants by bubbling the sampled air at a high flow rate through a method-specific absorbing liquid inside. The impinger liquid used can be analyzed to determine airborne contaminant levels. Impingers can be mounted directly to the high volume pump or a special spill-proof version can be attached to the worker’s collar with a clip. 

Midget Impingers, 25 ml - Standard, "Bubbler" and Special

These two-piece glass impingers have a capacity of 25 ml and a graduated scale along the side in 5 ml increments. The tip is precisely spaced in relation to the bottom of the impinger. 

The Standard Midget Impinger has its two glass pieces joined by a 24/40 ground joint.

The "Bubbler" or Fritted Midget Impinger is like the standard impinger, except it has a special fritted tip to increase the interaction between the air sample and the impinger liquid by breaking the air stream into smaller bubbles and thereby increasing surface area.

The Special Midget Impinger has a Teflon® sleeve on the glass stopper, allowing its use for ozone sampling.

Micro Spill-Proof Midget Impinger

This impinger is designed with traps to keep the liquid from spilling out, should they be tipped accidentally. It comes with a collar clip, allowing placement within the worker’ s immediate breathing zone. Very light in weight, the micro spill-proof impinger has a capacity of 2 oz (50 ml) and is made of PVC coated glass.

Moisture Traps & Holders

Moisture traps are designed to prevent ­moisture carryover from the impinger that might internally damage the sampling pump. Single and double holders are available for midget impingers and traps. A mounting bracket is also required when mounting these holders to Gilian 5000, Gilian 3500, GilAir-3, GilAir-5, or BDX II pumps.




Part No.

Standard Midget


2-pc., glass, 5ml increments


Fritted Plastic


Fritted, 2-pc, plastic


Fritted Midget (Bubbler)


Fritted, 2-pc., glass, 5ml increments


Special Midget,Teflon


2-pc., glass, Teflon sleeve, Ozone, 5 ml increments


Spill-proof, Micro, 2 oz.

50 ml

PVC-coated glass, fritted, collar clip


Moisture Traps


Standard Moisture Trap

98 ml

Plastic w/ 36"(91 cm) length of 1/4"(6.4 mm) ID tubing


Midget Sorbent Trap

25 ml

Glass w/ screw cap




Impinger Holder, single

Aluminum/black, HFS/GilAir/GilAir-5


Impinger Holder, double

Aluminum/black, HFS/GilAir/GilAir-5


Mounting Bracket for Impinger Holder

Required to mount impinger holder to GilAir-3, GilAir-5 and BDX II pumps


Mounting Bracket for Impinger Holder

Required to mount impinger holder to Gilian 3500 & Gilian 5000 pump