As the weather starts to change, and we see longer sunnier days, it might have you thinking about starting your spring cleaning soon. Giving your home a good cleaning is important this time of year, especially for your indoor air quality.. During the winter months you most likely spent more time indoors, and less time opening windows and doors. Your furnace system was probably also running more. Dust most likely has built up on a few surfaces and the air might feel stagnant.