Have you noticed that your sheets feel damp after you come back to your house after leaving it shut up for a while? Or perhaps there is a musty smell in your under-build? These can be signs of humidity or moisture which has become trapped inside the building. Free-Sol Solar’s ventilation solar air panels use solar energy to blow warm, dry air into your home and remove the stale, moist air. This keeps your home healthy and helps reduce allergies for its occupants. By keeping the indoor temperature stable when it is cold outside, the solar ventilation panels have the added benefit of helping you make savings on your electricity and heating bills.