May 14, 2021 One of the many essentials for life we take for granted is air, clean breathable air. Stale and dusty air can be just as harmful as the polluted air in big cities. The air in your home is trapped in a bubble with barely any filtering. Over time it becomes a breeding ground for micro-organisms. This can be a serious health hazard for people with medical issues such as asthma or allergies. Even without such health issues you most likely will feel like you’re suffocating in your own home during the humid high-temperature summers without ERV or HRV ventilation.