For those with autoimmune diseases, clean air is essential. They are more prone to getting sick because of their supressed immune systems. An air purifier is capable of capturing bacteria, viruses and allergens which would trigger illness. Please help move Courtney move towards wellness. Good ones are pricey but worth it. Whatever you can give would be appreciated. This has been well researched. The Austin Air Bedroom Machine Air Purifier is 765.00 and the IQAir HealthPro Plus Air Purifier is for the whole house and is 899.00.