The Miele vacuum has been independently certified and verified to reach HEPA standard.
And an allergy specialist will tell you if you can have a room such a bedroom that has a hard floor , bedding encased with anti dust mite covers you can reduce your symptoms significantly as you will get a break from the allergens that are causing the symptoms.So a HEPA certified vacuum that doesn't :increase allergens into the air you breath plus an air purifier and encasing your mattress pillows and duvet will help greatly as I have found from personal experience. I no longer need any medication. And there are millions of people who suffer from allergies and sadly it is increasing.