Miracall technology offers mask for adults. It also includes 2 filters. It is made up off 5 layers anti sticking cloth. Please use this mask for a week. It is also tested in lab. Delivery time vary from country to country. You may also track your order easily. Miracall technology also have refund policy in case if you have some quality constraints provided that you may return original packing. We also have medical and disposable type masks available. So choose a quality mask for own and family health stay safe.