Are dehumidifiers and or air purifiers safe / recommended to use with a newborn? I’m concerned of mould in the bedroom as my ensuits develops it from time to time which we clean however it’s hard to keep it from reappearing due to a small window and exhaust fan that doesn’t seem to help much with the steam.

Red Nose has no specific information about the use of humidifiers or air purifiers & any direct relationship to an increased risk of SUDI/SIDS.
If you use the humidifier/air purifier ensure it is well out of reach of your baby, especially as they grow &start; to reach for things. Ensure you use as per instructions with the item.