Spacers: Make Your Inhaler Work Better

Most pressurized inhalers send only about 10–20% of medicine into the lungs. A spacer can lift that number and cut down coughing, throat irritation, and wasted doses. If you use an inhaler for asthma or COPD, a spacer is one of the easiest gadgets that actually helps.

Spacers are simple: a short plastic tube or chamber that fits between your inhaler and your mouth. Some have a one-way valve — those are called valved holding chambers (VHCs). The valve holds the aerosol so you can breathe in slowly, which makes more medicine reach your airways instead of landing in your mouth.

When to use a spacer

Use a spacer if you or a child finds it hard to time a quick puff and a breath. Kids, older adults, and anyone with weak inhalation power do better with one. A spacer is also helpful when inhaled steroids cause mouth irritation or thrush; it reduces drug deposition in the mouth.

How to choose the right spacer

Pick a spacer based on age and needs. For babies and toddlers, choose a spacer with a mask that fits the face snugly. For older children and adults, a mouthpiece is usually better. Look for a VHC if you need the extra hold time — it’s easier to coordinate and reduces the need for fast inhalation. Consider size: larger chambers give more time for the aerosol to slow down, but they’re bulkier to carry. Materials are mostly plastic; check for BPA-free labels if that matters to you.

Brands differ, but the key is fit and comfort. A spacer that leaks, cracks, or has a loose connection will lose effectiveness. Ask your pharmacist or respiratory therapist to show you how to attach and use the specific model you buy.

Using a spacer correctly matters. Shake the inhaler, attach it tightly to the spacer, exhale fully, press the inhaler once, then breathe in slowly and deeply. If your spacer has a valve, breathe in and out normally five times unless instructed otherwise. Don’t rush — slow inhalation is the point.

Cleaning and upkeep are simple but important. Most manufacturers recommend washing once a week with warm soapy water, letting it air dry — do not wipe the inside, as this can create static that attracts the drug. Replace masks and mouthpieces if they crack or stay cloudy. Check the spacer every few months for wear; some models list an expiry or recommended replacement interval.

Travel tips: carry the spacer in its case or a clean bag. If you fly, spacers are usually allowed on board, but pack them in carry-on luggage. If you use a mask for a child, bring spare masks in case one gets lost or damaged.

Talk to your provider about getting a spacer if you struggle with inhaler technique or have frequent symptoms. With a small upfront cost, spacers often reduce wasted medication and improve control — that can mean fewer attacks, fewer ER trips, and better daily breathing.