Accessories

One-way Respiratory Valves

Check valves for unidirectional repiratory circuits. They have a non-sticky SpiralType diaphragm which is sensitive to low flow rates and is not gravity dependent,

• Range of sizes available, from port ID 7.5 mm to 28 mm
• One model is autoclavable (15 mm port ID)

Two-way Non Rebreathing Valves

These valves have 3 ports: inhalation, exhalation and the mouth. They allow separation of inspired and expired air for collection or use with pneumotachometers.

• Available in Y- or T-configurations
• Range or port sizes from 3.2 mm ID to 15 mm ID
• Standard medical taper connectors
• Long-life non-sticky diaphragm

Rebreathing/Collection Bags

Latex rubber pleated bags ideal for use with rodents and other small animals up to dogs. Not suitable for long-term gas storage (for non-permeable bags, see below).

• Available in four sizes: 50, 200, 500 and 1000 ml.
• Closed tail piece may be cut for flow-through or to add stopcock.

Non-Diffusing Gas Collection Bags

These flexible, leakproof, impermeable bags are ideal for the collection of physiological gases or the delivery of known gas concentrations.

• Available in 5 sizes: 5, 15, 30, 60, 100 and 170 litres
• Opening is 35 mm ID with O-ring (fits standard 25 mm connector)
• Luer lock port connects to internal tube for sampling and mixing
• Hose barb port and self-sealing injection port also provided

Tubes, Nose Clips & Mouthpieces

A range of accessories for use in respiratory measurements.

• Nose Clips - disposable and reusable
• Breathing Tubes - smooth bore 35 mm ID tubes in various lengths
• Mouthpieces - reusable blue vinyl mouthpieces in four sizes

Harvard Douglas Bag Sets

Flexibility and convenience for metabolic and respiratory studies.

• Light, tough PVC collection bags with welded seams
• One-way air valves with mica disk for minimal resistance
• Wide-bore tubing valves in 3 configurations
• Flexible, 30 mm bore tubing for low resistance
• Large non-rebreathing valves
• Tubing adaptors for standard 22 mm tubing
• Absorbing Canister; colour-indicating CO₂ absorbent available.