FOREWORD
This instrument has been designed and produced to allow the fumigation/sterilisation in the Microbiological Safety Cabinets according to what provided for by the Annex J to the EN 12469 European standard.

The peculiarities of FASTER formalin vaporiser are the following
- Universality: in fact the capacity of the vaporiser containers is so large to assure the correct fumigation in all models of FASTER's cabinets (in fact a concentration of 50mg/m3 formaldehyde is to be assured and this is obtained by mixing 60ml formalin with 60ml water per each cubic meter to be sterilised); for sure this offers an economic advantage to the customer, who can fumigate all his cabinets, even of different dimensions, with one single vaporiser.
- Fully automatic procedure: in fact the process is activated by merely pressing the key correspondent to the socket switch on the control panel of the cabinets and all following steps happen without any further intervention of the operator up to the end of the full cycle.
- Safety: the solution, which neutralises the formaldehyde (ammonium bicarbonate) eliminates the concentration of this substance before using the cabinet again. Furthermore the instrument has been designed to assure that also in case of black-out during the sterilisation, the procedure can be followed and completed correctly when the electric power is restored.
- Easiness of operation and cost saving: in fact the full process can be carried out directly by the end-user without the intervention of a technical assistance service (with considerable cost saving).

APPLICATIONS
- Sterilisation of microbiological safety cabinets
-Sterilisation of cytotoxic drug safety cabinets (with microbiological contamination)

OPERATION

The formalin vaporiser consists of two containers for solutions. The first one contains a solution of 50% formalin and 50% distilled water and the second one contains a solution (for instance ammonium bicarbonate) suitable to neutralise the formaldehyde vapours generated during the sterilisation process.
The switching on of the device causes the heating of a resistance used to generate the formalin vaporisation.
A safety thermostat set to 130° C (formalin vaporises at a temperature always lower than 100°C) signals the end of the vaporisation process.
Then a dwell time starts (it have to be set through a timer and must never be less than 6 hours). When the dwell time is over, the solution suitable to neutralise the formaldehyde vapours is to be vaporised in the same way used for formalin vaporisation.
When this second process is over (signalled by another thermostat also set to 130°C) another waiting period of 20 minutes starts, after which the sterilisation cycle is completed.
The device is fitted with a series of lights to highlight the various stages of sterilisation process.

TECHNICAL SPECS
- Structure : in AISI-304 stainless steel
- Containers of the solutions : in anodised aluminium
- Max. volume of the solution containers : 250 ml./cad., suitable to assure that the concentration of formaldehyde is at least 50mg/m3 for all models of FASTER BH-EN 2000 and CYTOSAFE 2000.
- Temperature sensors: bimetallic thermostat
- Period of sterilisation : it can be set by a timer in order to assure what provided for by the J enclosure of EN 12469 standard (at least 6 hours. Max. time 8 hours)
- Equipped with safety devices for the following operations:
* to allow the complete sterilisation cycle also in case of black out
* to avoid that the temperature of the containers exceeds 150°C by means of a double safety thermostat.