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UNO Gas Exhaust Unit

Code: UNO209

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The UNO Gas Exhaust Unit can be used for the direct-exhaust of waste anaesthetic- and exhaled gas while using face masks for rats and mice.

Further the UNO Gas Exhaust Unit can be used for the indirect-exhaust of the excessive anaesthetic gas from the circle system of the UNO Micro Ventilator (UMV) at various volumes and pressure settings of the UMV.

In order not to spill the anaesthetic gas mixtures, and for good functioning of the Gas Exhaust Unit, the supply of the gas mixture to the face masks should be set at a maximum of:

Face mask - rat: -350 ml/min*1
Face mask - mouse: -260ml/min*2
The supply of the anaesthetic gas mixture to the UNO Micro Ventilator (UMV) is set at a lower level, because with the use of the UMV and the correct size intubation tube, there is hardly any waste of anaesthetic gas mixture*3

1 Rat:

Tidal volume: ca. 2,5ml
Breathing frequency during anaesthetic: +/- 60-70/min
Total breathing volume / min: 150 - 175 ml/min
Not all gas supplied is "used" by the rat and as a rule of thumb, the gas supply to the face mask is about twice the breathing volume/min, i.e. 300 - 350ml/min.

2 Mouse:

Tidal volume: ≤ 1ml
Breathing frequency during anaesthetic: +/- 110 - 130/min
Total breathing volume / min: 110 - 130 ml/min
Not all gas supplied is "used" by the mouse and as a rule of thumb, the gas supply to the face mask is about twice the breathing volume/min, i.e. 220 - 260 ml/min.

The supply of gas to the UMV for inhalation anaesthesia with ventilation through the tube should be slightly higher than the total breathing volume per minute both for rat and mouse (taking into account the minimum required flow (supply) for the vaporizer).

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Free delivery for all orders over £75.00 (ex VAT) to Mainland UK and Northern Ireland.
Standard delivery time is 3-5 working days.
Orders placed after 3pm will be processed the following day.
A standard delivery charge of £8.95 is applicable to all orders under £75.00 (ex VAT).

UNO Gas Exhaust Unit
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UNO is a leading supplier of animal related products from animal caging, animal identification through to surgery equipment and supplies.

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