Winter time Ceiling Fan Turn Direction (Blade Rotation): Which direction for ceiling fan in Winter? Lets say it is Winter time and you want to set your ceiling fan to spin in the correct direction. When looking at your fan from below, the fan should be turning clockwise, or in reverse.
While it is true that you will not find a surface without bacteria on it, the majority of bacteria that youâll find are common, non-dangerous species. Studies have shown that of the bacteria found in indoor air, the most common four are: Micrococcus, Staphylococcus, Bacillus, and Pseudomonas.
The five most common indoor mold varieties are: 1  Alternaria: Commonly found in your nose, mouth, and upper respiratory tract; can cause allergic responses. 2  Aspergillus: Usually found in warm, extremely damp climates, and a common occupant of house dust; produces mycotoxins; can cause lung infections (aspergillosis).