Is it safe to be exposed to ENTONOX during pregnancy?

There is no evidence to show that being exposed to this product has any affects on the growing foetus. One study in rats (3), exposed to very high levels of nitrous oxide continuously for prolonged periods (24 hours) did show some affect on the foetus. But the use of continuous flow for extreme lengths of time meant the level of exposure in this study was 50 times higher than the current occupational exposure level of 100ppm. Therefore providing ENTONOX is used correctly for short term procedures and self-administered using a demand valve it is very safe.