CDC recommends humidifier for coronavirus

Humidifier: Recently USA Today did an article regarding humidifiers to ease coronvirus symptoms with the ranking of which ones are best in the home (USA Today Article). As an Heating
furnace air conditioner

6 Common Furnace Questions

Why my furnace is not working? The best answer to this question is that only a diagnosis can tell exactly why the furnace is not working. Your furnace may not work