Heat and Moisture Exchanger (HME) Breathing Filters — Paediatric

Purpose & Use

• Paediatric HME filters are designed for children and infants requiring mechanical ventilation or anesthesia.

• They humidify inhaled air and filter bacteria and viruses, protecting the delicate airways of young patients.

• Prevent drying of airway mucosa, thickened secretions, and potential lung injury.

Target Patient Population

• Specifically sized for paediatric breathing circuits (neonates, infants, and children).

• Connectors are smaller than adult versions, compatible with paediatric ventilators and resuscitation devices.

Structure & Components

• Outer casing: lightweight medical-grade plastic, often transparent.

• Filter medium: synthetic or electrostatic material for trapping bacteria, viruses, and particles.

• HME element: captures heat and moisture from exhaled air and returns it during inhalation.

• Connectors: typically 15 mm male/female to fit paediatric circuits.

Performance

• High-efficiency bacterial/viral filtration (>99%).

• Maintains airway humidity suitable for children.

• Minimizes airway irritation, prevents mucosal dryness, and reduces thickened secretions.

Advantages

• Combines humidification and filtration in a single, compact device.

• Lightweight and easy to attach to paediatric circuits.

• Disposable, lowering cross-infection risk.

• Simple alternative to active humidifiers in short-term ventilation.

Usage Guidelines

• Single-use only; replace according to manufacturer guidance or when clogged.

• Ensure proper attachment to the circuit to prevent leaks.

• Monitor for increased resistance or moisture accumulation during extended use.

Common Applications

• Paediatric ICU ventilation.

• Anesthesia circuits for children during surgery.

• Emergency resuscitation with bag-valve-mask systems for infants or children.

• Any situation requiring humidified and filtered breathing gases for paediatric patients.