I have to tell you that where I live the winters get pretty brutal! The air quality gets very thin and cold if that makes sense.
And when you have thin and cold air this makes for the perfect climate to get seriously sick in if you are not prepared.
This is why I always have my central heating and air conditioning system tuned up and checked up before this time of the year hits. This way, I have proper heating throughout my home and am fully prepared for the extreme cold thin air ahead! I also buy myself 2 portable space heaters as back up in the event that my central heating and air conditioning system breaks down during this season. After all, the HVAC specialists are not fortune tellers. They can just tell you during a heating and air conditioning system check up and tune up if there are any problems brewing at that very moment that could lead to a heating and air conditioning breakdown emergency. So this is why it is always wise to have a portable space heater back up in the event that you have a breakdown and you can not get a certified heating and air conditioning specialist out to you from the local heating and cooling company right away. This also will save you potential money in having to pay over one hundred dollars a night at a local hotel to wait for your central heating and air conditioning system to be fixed! So the bottom line here is to always keep a portable space heater for back up.