Get fresh air flowing with this vent grille from Schneider Electric. It fits over an opening in a wall box to boost air circulation while preventing airborne dust and debris from sneaking in. Thanks to its polyamide construction, the unit resists corrosion, so it's dependable in humid or damp conditions. Installation is simple, as you just slot the grille into a 38mm cut-out and tighten the nut using the 15mm thread. Use it to help ventilate wall boxes from the Thalassa PLM, TBS and PLS series and stop condensation build-up caused by rising and falling temperatures.

• Comes as a convenient pack of two louvres
• Built-in filter to keep air clean and prevent equipment damage caused by contamination
• Mercury-free to boost safety
• Tough polyamide material means it withstands wear and tear
• Compact dimensions of 63 (H) x 63mm (W) x 12mm (D) for discreet installation

• Printworks
• HVAC systems
• Data centres
• Warehouses

Yes, it's rated IP45, meaning it's shielded from tools and wires larger than 1mm as well as being protected against low-pressure water jets.