Mini MIRI
®
Dry and Mini MIRI
®
Humidity Multiroom IVF incubators User Manual
Rev. 3.0
22
Connect the N
2
inlet to the Nitrogen Bottle in a similar way.
Figure 11.3
Gas filter
Connect the N
2
inlet to the Nitrogen Bottle in a similar way.
The Mini MIRI
®
and Mini MIRI
®
Humidity multiroom IVF incubators can also
run-on premixed gas. It is a more expensive option for gas consumption. It also
means the user cannot adjust the CO
2
and O
2
levels without changing the gas supply.
Please read the "13 Installation with premixed gas" section below for more de-
tailed information about using the device on premixed gas.
12 HEPA / VOC filter
(applicable only for the Mini MIRI
®
Dry model)
VOCs are hydrocarbon-based compounds that are found in fuel, solvents, adhesives and
other compounds. Examples of VOCs include isopropanol, benzene, hexane, formalde-
hyde, vinyl chloride.
VOCs can also occur in medical gases, such as CO
2
and N
2
. It is essential to use in-line VOC
filters to prevent these fumes from entering your Mini MIRI
®
Dry multiroom IVF incuba-
tors for your medical gasses.
Unexpected sources of VOCs are commonly found in IVF labs. These can include cleaning
agents, perfumes, cabinetry, grease on the wheels of equipment and sources in HVAC
equipment.
VOCs are typically measured in parts per million (ppm.) They can also be reported in
parts per billion (ppb.) For IVF, the recommended count below 0.5 ppm; the total quan-
tity of VOCs should be below <0.2 ppm or preferably zero.
High levels of VOCs (over 1 ppm) are toxic to embryos, resulting in poor embryo devel-
opment and even probable failure to reach the blastocyst stage.
VOC levels in the 0.5 ppm range will typically allow an acceptable blastocyst development
and reasonable pregnancy rates but will likely result in a high percentage of miscarriages.
