- Douglas Bag
Tough, polyvinyl chloride collection bags with electrically welded seams. Tougher, lighter, more flexible and less gas permeable than rubber bags, reducing measurement errors.
- Closed Circuit Double Douglas Bag Set
This closed circuit double Douglas bag set can be used in an extensive range of tests including:
- Metabolic rate before, during and after exercise
- Effects of humidity and temperature on ventilation
- Calculation of oxygen consumption
- Effects of breathing high and low CO2 concentrations on ventilation, respiratory rate and O2 consumption
The set features:
- Soft, flexible, ethylene vinyl acetate copolymer tubing
- 30 mm ID tubing has nearly 50% greater cross-sectional area than traditional 22 mm ID tubing
- Tubing has extremely low profile annular rings resulting in minimum distortion on bending so that maximum cross-sectional area is maintained
- One-way air valve with mica discs
- Absorbent indicator canister can be set directly in the circuit at any point
- Direct Fill Double Douglas Bag Set
This double bag set is intended for the same kinds of tests as the single bag set with the following additional advantages:
- Greater capacity
- Allows isolation of two discrete samples during the same test
The set features:
- Soft, flexible, ethylene vinyl acetate copolymer tubing
- 30 mm ID tubing has nearly 50% greater cross-sectional area than traditional 22 mm ID tubing
- Tubing has extremely low profile annular rings resulting in minimum distortion on bending so that maximum cross-sectional area is maintained
- One-way air valve with mica discs
- Absorbent indicator canister can be set directly in the circuit at any point
- Direct Fill Single Douglas Bag Set
This basic set is for tests such as pulmonary ventilation, metabolic rate estimation and metabolic rate during work.
- Soft, flexible, ethylene vinyl acetate copolymer tubing
- 30 mm ID tubing has nearly 50% greater cross-sectional area than traditional 22 mm ID tubing
- Tubing has extremely low profile annular rings resulting in minimum distortion on bending so that maximum cross-sectional area is maintained
- One-way air valve with mica discs
- Absorbent indicator canister can be set directly in the circuit at any point
- Douglas Bag Tubing
Soft, flexible, ethylene vinyl acetate copolymer tubing with a 30 mm bore resulting in a nearly 50% greater cross section than traditional 22 mm bore tubing. Low profile annular rings make the tubing resistant to distortion when bending occurs so that maximum cross-sectional area is maintained.
- Douglas Bag Absorbant Indicator
This 600 ml Absorbent Indicator Canister can be placed in the tubing circuit at any desired point. Because the Canister is made of transparent plastic, it can be used with a Color-Indicating CO2 Absorbent.
- Douglas Bag Parts & Accessories
Nose clips and mouthpieces are included in the Douglas bag sets, but are also available individually. Spring clips and plugs can also be purchased separately.
Please see the Item Listing and Full Description for information about Douglas Bag accessories.
