Breathing Exercise Timer

Follow the circle. Breathe in as it expands, hold when it pulses, out as it contracts.

😌

Reduces Stress

Lowers cortisol levels

💤

Better Sleep

Activates calm mode

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Lung Function

Strengthens breathing

❤️

Heart Health

Improves HRV & BP

Ready

Press Start

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4-7-8

In 4s → Hold 7s → Out 8s

Sleep Anxiety Guide →

🎯

Box

In 4s → Hold 4s → Out 4s → Hold 4s

Focus Stress Guide →

💓

Coherent

In 5.5s → Out 5.5s

Daily HRV Guide →

🌫️ AQI Explainer → 📐 CADR Calculator → 🔍 Purifier Finder →

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Embed This Tool (Free)

Got readers who care about clean air? Drop this calculator into any page — no signup, no fees, just paste the code. Links back to us so we can keep building free tools.

 <iframe src="https://theairpurifierguide.com/tools/breathing-timer/embed" width="100%" height="700" style="border:none;border-radius:12px;" loading="lazy" title="Breathing Timer"></iframe>

Free to use. No registration required. Works on any website.