* Free standard P&P worth £7.99 in England, Scotland & Wales on all orders over £50. Excluding remote locations which will be charged £27.98 for standard delivery. A list of postcodes that fall within remote locations can be found on our delivery page. Next day and express deliveries to remote locations will cost more, please ask our customer service team for a quote. 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.