My local section experiences severely cold winters and brutally boiling summers.
Over the course of the year, the temperature fluctuates from a low of around twenty degrees below zero to a high of about ninety, during the cold weather, with the gas furnace blasting, the beach home tends to get especially dry. We have the opposite problem when the two of us switched to cooling. The excess of moisture causes musty smells and mold and mildew growth. Because the two of us switch between heating and air conditioner with little to no break in-between, there’s entirely rarely an chance to open windows and welcome natural ventilation. It’s necessary to keep windows and doors shut tight. I’ve taken extra measures to seal the thermal envelope and minimize energy waste. This helps to reduce the workload of the gas furnace and air conditioner but also traps allergens inside. Dust, dander, pollen, VOCs, bacteria, viruses and all sorts of nasty pathogens get continually circulated by the heating or cooling system. Any contaminants concealed inside the HVAC duct can easily become airborne and add to the problem. Poor indoor air pollen levels can be blamed for all sorts of health concerns, and everything from sneezing, coughing and respiratory infection to exacerbated symptoms of asthma and psoriasis can be consequences of the hygiene and health of the air. I researched all weird types of air quality accessories, debating between whole-house air purifiers, UV lights, humidifiers and dehumidifiers. I eventually chose a heat reclaimy ventilator that operates 24/7, all year round, introducing fresh air and removing stale air. By using the outgoing air to preheat the incoming air, it lessens demands on the gas furnace. The ventilation system also helps out the air conditioner by reducing concerns with humidity.