Fresh 99H wall vent

Fresh 99H wall vent (Humidity Sensitive)

Ventilation Area (mm2) 5600mm2

• Non-electrical, humidity-sensitive through wall vent provides controllable, responsive background ventilation. Supplied internal vent, ducting and external grille.
• Automatic opening / closing dependent upon relative humidity.
• Energy saving through reduced heat loss
• Trickle facility even when ‘closed’ to ensure fresh air ingress.
• Simple and easy to fit.
• Drill hole 102mm in diameter from inside out sloped downward.
• Suitable for both new build and refurbishment applications.
• Fresh 99H is also available with enhanced noise reduction.