Allergy Australia’s 940ml anti-allergen dust mite spray breaks down the structure of common household allergens that cause allergy symptoms such us hay fever (rhinitis), eczema and asthma, making them into a denatured protein that won’t effect allergy sufferers. Its formula works on protein-based allergens such as dust mite allergen, cat dander, dog dander, cockroach droppings and even pollen and mould.