*Purchase of an Aerosure-Medic product or special offer bundle includes free standard delivery worth £7.99 in England, Wales & Northern Ireland. Some areas of Scotland and other remote postcodes will incur a surcharge cost of £19.99. Next day, Saturday or express deliveries cost more, please ask our customer service team for a quote. A list of postcodes that fall within remote locations can be found on our delivery page. These web pages are intended for UK/ EU residents only. †Inspiratory Muscle Training (IMT) is a technique used to correct or increase performance of the muscles involved in inhalation. Positive Expiratory Pressure (PEP) devices help inhaled air get behind the mucus in the lungs and helps keep the airways open.