The In-check DIAL has been revised, now grouping inhalers as a function of their internal airflow resistance, in order to accommodate information on an increasing number of new devices. There are six resistance groups, five of which relate to dry powder inhalers (DPIs) the other to pressurised metered dose inhalers (pMDIs). A guide to identify the resistance group for each inhaler is provided on the In-check DIAL G16 and in the associated guide. The In-check DIAL G16 can still be used to measure a specific flow rate of a particular inhaler through the use of a specific restrictive adapter.

Many patients do not use their inhalers correctly, often failing to inhale at the correct flow rate. Good inhaler use depends on inspiratory flow in an important way. In-check DIAL G16 enables the healthcare professional to coach their patients on how to use their inhaler correctly.

• Groups inhalers as a function of their internal airflow resistance, accommodating new inhaler devices
• Individually calibrated for accuracy
• Easy to clean, by simple washing
• To coach DPI or pMDI inhaler technique
• Patients learn to inhale at the correct flow rate
• Inhaler training can be conducted quickly
• Low-cost, simple yet effective method of inhaler technique training
• Use with one-way valve mouthpiece to minimise cross infection