Positive Input Ventilation, or PIV, is a method of whole-home mechanical ventilation using a single system stored in the loft.
Nuaire invented PIV in 1972, introducing the world to the Drimaster. Today, Nuaire has a range of Drimaster units that include a heating element, ECO smart controls, and NOX filters – as well as a combination of these benefits.
- The unit continuously draws fresh air from outside in through the loft
- The air is filtered to remove harmful pathogens such as road traffic emissions (NOX), pollen, and radon
- Fresh, filtered air is continuously fed into the home through a ceiling-mounted diffuser
- The flow of air dilutes and displaces warm, moist air within the home
- As the air circulates, it pressurises the home from the inside out, driving out excess moisture as well as allergens and volatile chemicals.