If you want to expedite the drying time, such that the ORM dries in about 3 to 5 hours, please use the Contact-Drying Method: after rinsing or boiling the ORM place it face-up on a surface in an well ventilated area, and position 3 clean, crumpled facial tissues or paper towels into the three chambers of the pleated filter, such that they are in contact with the filter material – please make sure not to rub or scour the filter material. After an hour, remove the tissues, and let the ORM dry open to the air – depending on local conditions, it may take between two and four more hours. This process can also be undertaken using clean cotton fabric.