If you have allergy sufferers at home, the culprit isn't always flowers, trees, grass and all the things going on outside the home. There are many causes that we live with daily in our homes without realising, that can easily be significantly reduced.
Dust is the main culprit, residing amongst carpet fibres, on mattresses and collating on hard floors and on household furnishings such as curtains, on sofa cushions and on hard furniture.
Pet hairs are also another main factor that can cause allergies, and while you're not likely to get rid of your pet to reduce allergens, you can reduce the amount of pet hairs that linger around your home.