The PuriFresh® Energy Recovery Ventilator delivers high performance in a compact,
easy to install, appliance:
It draws in fresh outside air for indoor use, while removing an equal amount of stale
indoor air, providing symmetric ventilation;
It conditions the temperature of the fresh air to closely match the temperature of
the indoor air;
It conditions the humidity of the fresh air to closely match the humidity of the
In the winter, it ventilates but keeps the cold out. It reduces indoor humidity
to prevent mold growth and dry rot, but it does not excessively dry the air.
In summer, it ventilates but keeps the heat and humidity out.
The patented PuriFresh® ERV provides a clean air solution for sick building syndrome
in the home or office.
With its low cost, high performance, and do-it-yourself installation, the PuriFresh®
Energy Recovery Ventilator is a true energy saving device! In many locations, the
payback time in reduced energy cost is well under 5 years! Compare this to the much
longer payback time of the other Heat or Energy Recovery Ventilators. They cannot
even be considered energy saving devices.
The PuriFresh® ERV can be installed in a window in minutes, as shown in the pictures
on the left, or it can be permanently installed through a wall. Because of its patented
design, maintenance is only suggested once a year to clean the permanent heat exchangers.
Compare this to the three month required maintenance schedule of the other Heat
or Energy Recovery Ventilators.