PIV systems are effective at reducing radon concentrations in properties with moderate levels, typically achieving significant reductions through continuous positive pressure ventilation and air dilution as recognised by HSE and BRE guidance.

Yes, PIV systems can be installed in flats using wall-mounted units when loft access is not available, providing effective ventilation for smaller properties and apartment buildings.

Running costs are minimal with low daily electricity consumption, and filter replacements are needed every few years. Professional maintenance checks are recommended to ensure optimal performance.

PIV systems operate continuously regardless of weather conditions, providing consistent radon protection and air quality improvement throughout the year, unlike passive ventilation methods.

Most PIV installations begin reducing radon concentrations immediately, with improvements typically measurable within weeks of continuous operation as the system establishes positive pressure.