Bbrand Halloween Decoration Pumpkin Head Latex MasksNO. 1there may be a little latex smell. Just don't worry, this is the normal smell of latex. Leave it in a ventilated place for a day, the smell will disappear. If you want to use it immediately, you can also use hot water to wash. NO. 2 Please be aware that the vacuum packaging may cause a slight deformation issue. I say slight because it will go back to its original and intended shape in a couple of hours. Just use something to hold the mask open.