Most important part of the house that should have allergy proof is the bedroom because it is the part of the house that you will stay long to sleep, and you don’t know at all, which of those allergies are coming in while you are sleeping. It is maybe enjoyable to have the windows of our bedroom open because we can breathe fresh air however it is not advisable to open it especially if you have so many trees around or plants because the pollen will comes in easily in your bedroom.
Remove rugs as well as pet dander and mites as it can be a reservoir of those. Minimize pillows and fabrics and excess clutter to avoid collecting dust and pet dander. Now since your bedroom windows are always closed turn your A/C on to cool off.