Interactive tool
HME vs Humidifier: Runtime Savings
See exactly how many more hours of runtime an HME filter gives you compared to running a heated humidifier on battery power.
Battery
🔍 What's an HME filter?
A Heat Moisture Exchanger (HME) is a small inline filter that captures your breath's warmth and humidity and returns it on inhalation. It adds negligible power draw (~2W) vs 12–28W for a heated humidifier.
Runtime comparison (256 Wh battery)
HME savings
Using an HME filter instead of low humidifier gives you ~2.9 more hours per charge.
Switching from high humidifier to HME adds ~5.2 more hours.
Buy HME filters on Amazon →The bottom line
An HME filter costs under $2 per night and can double your battery runtime compared to running a heated humidifier. It's the single most effective battery-saving accessory you can buy.
As an Amazon Associate we earn from qualifying purchases.