I live in Los Angeles, and right now the weather is heavy with moisture, and quite cool (40 degrees at night), so I turn the heat up to about 68-70 degrees, and run a humidifier, if the air gets too dry.
Ask your vet about products that cut back on shedding cats. My vet sold me a product called LoShed for Pets. The label says "Reduces airborn allergens caused by pets dry skin and hair coat; reduces non-essential shedding." Mine is a 6.8 oz bottle, and I think it cost me $18. I keep forgetting to apply it to the cats, so I guess I'll have to leave it out where I see it every day. There is also a LoShed Shampoo, which is supposed to help curtail the excessive shedding also.
The ingredients are: Keratin, Amino Acids, Vitamins A, and E, Complex of Essential Unsaturated Fatty Acids, Biotin, Calcium D-Panthothenate, Inositol, Herbal Extracts.
Sounds good, eh? I shake the bottle vigorously, then spray my palms 3 times, and massage it into the cat's fur, outer layers and the undercoat. The directions say to use it daily for 2-3 weeks, then only one or twice a week.