can i use humidifier in ac room for full night coz with out ac we can't even sit for a minute i have 3month old baby and how it works pls guide me

A. you should humidifier only if baby is suffering from common cold or cough otherwise there is no need of it. humidifier adds moisture to the air and prevents dryness. AC will keep extracting the moisture caused by humidifier so its efficiency will be low.