Replacement HME Foam Filter (1-Pack)

When you exhale, your breath contains natural moisture. Our patent-pending design captures and stores this moisture in the HME filter. When you inhale, dry cabin air passes through the humidified matrix, picking up moisture before reaching your respiratory system. This creates a continuous cycle of moisture exchange and ensures you're air at the perfect humidity level.

No batteries. No refills. Just your body's natural humidity working for you.

Yes! Kuvola is designed to fit all adults comfortably and look great, regardless of gender.

Universal fit features:

• Adjustable head strap accommodates different head sizes.
• Flexible, ergonomic, medical-grade materials conform to various face shapes.

Yes. Comfort for extended wear was our primary design goal. The soft, medical-grade materials don't irritate skin, the ergonomic shape prevents pressure points, and the moisture exchange actually makes breathing more comfortable over time (unlike regular masks that trap heat). The adjustable head strap allows you to find your perfect fit.

Kuvola contains magnets and should NOT be used by anyone with electronic medical implants.

Do not use Kuvola if you have:

• Pacemaker
• Implantable cardioverter defibrillator (ICD)
• Neurostimulator or spinal cord stimulator
• Cochlear implant
• Insulin pump or glucose monitor with magnetic components
• Any other electronic medical implant

Why: The magnetic head strap attachment system may interfere with the operation of electronic medical devices, which could be dangerous or life-threatening.

If you're unsure: Consult your cardiologist or device manufacturer before using Kuvola. Your safety is our top priority.

For all other users: Kuvola is safe when used as directed. The magnets are contained in the head strap clip and do not come into direct contact with skin or airways.

Yes. Kuvola is REACH certified, meeting strict European Union safety standards for chemical substances in consumer products.

What is REACH certification?

REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) is one of the world's most comprehensive chemical safety regulations. It ensures that products sold in the EU:

• Contain no harmful substances above safe limits
• Use materials safe for extended skin and respiratory contact
• Meet strict environmental and health protection standards
• Are tested and documented for consumer safety

Why this matters for you:

REACH certification means every material in Kuvola—from the medical-grade foam to the fabric and magnetic components—has been evaluated for safety when in contact with your skin and respiratory system.

This is especially important for a product you wear on your face.