Inhaler: Practical tips for use, types, and safety

If you use an inhaler or care for someone who does, small technique fixes can make a big difference. This page pulls together clear advice on the most common inhaler types, how to use them correctly, safety checks, and what to watch for when buying inhalers online or choosing alternatives like Ventolin substitutes or new low-carbon options.

Know the main inhaler types

There are two everyday styles: metered-dose inhalers (MDIs) and dry powder inhalers (DPIs). MDIs spray a measured dose and usually need coordination between pressing and inhaling. DPIs release powder that you inhale quickly and deeply—no spray. Then there are nebulizers for people who need a steady mist over time. Rescue inhalers (short-acting bronchodilators) give fast relief for wheeze and breathlessness. Maintenance inhalers often contain steroids or long-acting bronchodilators to control inflammation and prevent attacks.

How to use an inhaler correctly

For MDIs: shake the can, breathe out fully, put the mouthpiece between your teeth (don’t bite), start a slow steady inhale and press the can once, keep breathing in slowly, then hold your breath for about 10 seconds. If you struggle to coordinate pressing and inhaling, use a spacer—it's a simple plastic tube that makes each puff easier and sends more medicine to the lungs.

For DPIs: don’t shake. Load the dose if required, breathe out away from the device, put the mouthpiece in, then inhale quickly and deeply. Hold your breath for a few seconds after inhaling. Each device works a little differently, so read the instructions or ask your nurse to show you.

Rinse your mouth after steroid inhalers to cut down on yeast infections in the mouth. Track your dose counter and replace the inhaler when it’s empty—some look full but are not. Store inhalers away from extreme heat or cold and keep them dry.

Never share inhalers, even with family. If symptoms get worse or your rescue inhaler isn’t helping, seek medical help—don’t wait.

Buying inhalers online? Only use licensed pharmacies that require a prescription and show clear contact details. Scam sites can sell fake or expired medicine. We have articles on safe online pharmacy choices and how to buy meds responsibly.

One last thing: manufacturers are changing propellants to cut greenhouse gases. You may hear about low-carbon Ventolin inhalers—these aim to reduce environmental impact without changing how the medicine works. If you care about the planet, ask your provider whether new low-carbon options are available to you.

If you want a quick refresher, practice in front of a mirror or ask a pharmacist for a demo. Small improvements in technique often mean fewer attacks, fewer side effects, and better control of your breathing.