For this infant stripped
In summer you can walk all day, the first winter walk should start at temperature not below minus 5 degrees for 15-20 minutes and gradually increase up to 1.5-2 hours 2 times a day.
Toddler aged 1 to 3 months may be in the air at 10 degrees below zero, over 3 months - at 12, over half a year - at 15. Younger for a walk in the winter are on hand to not freeze, then you can take out in a wheelchair. Children over one and a half years and you can walk twice a day for 2-3 hours, if not more frost 15-16 degrees.
You can take an air bath and home. For this infant stripped and placed on a warm diaper. It is best to combine this procedure with morning exercises. The optimum temperature for newborns 20-22 degrees by the year it drops to 18-19 degrees. Begin with 1-2 minutes, then every five days was added two minutes. Babies up to six months is enough for 15 minutes, those who are older, - a half-hour.