Since carbon dioxide gas is used, please ventilate the place of use. The atmosphere contains about 400ppm of carbon dioxide, but the Japan Society for Occupational Health has decided that the permissible concentration is 5000ppm.
When dry ice hits the object to be cleaned, static electricity is generated, so care must be taken when cleaning semiconductor circuits.
This device heats the carrier gas, but if the object to be cleaned is cooled during cleaning, dew condensation may occur and watermarks may occur. To prevent this, dry air or dry nitrogen gas may be used as the carrier gas, and the atmosphere may be purged with these.