According to a German study most of us spend up to 90% of our time indoors, during which we are by and large breathing air that is potentially absolutely laden with fine dust. Its simple really isn’t it, whether you have windows open or not the threat from fine dust in the atmosphere will be there. Open the windows and all manner of fine dust particles will be constantly blowing into your room. Keeping all the door and windows closed won’t help the situation very much, as that way all the fine dust in the room will keep on being re-circulated
Accepting that some things like laser printer toner is, by its very nature, a fine dust; it’s a fact that just about anything can, and will, create a fine dust. A car driving down a road creates fine dust due to the friction between the tires and the road surface, the smoke from a burning fire is made up of fine dust particles, tearing a piece of paper creates fine dust particles. Unless you were to walk around all day with a fine dust face mask filter on - you can’t avoid breathing in fine dust to some extent. The things listed above are quite tangible fine dust problems that we can all be aware of and actively try and avoid, if not prevent. For example, in the case of laser toner fine dust you can fit air vent fine dust filters to laser printers. However, there are two things that are pretty well impossible to avoid that are responsible for much of the fine dust we breathe in - dead skin cells and dead mites!
Having been ‘living’ things, these two things are organic fine dust and whilst they are virtually impossible to avoid, you can take steps to reduce their affects. You can’t stop your own dead skin cells being shed by your body, but simply by regularly vacuuming your rooms and using moist dusters to wipe surfaces you can reduce the risk of them becoming airborne and getting into your respiratory system. Fine dust mites, and more importantly the ‘deposits’ from mites, can be responsible for up to 70% of the fine dust in your bedroom, why - well they love the warmth of your bed! Regularly shaking and turning over the mattress and pillows or vacuuming them, not to mention washing bedding, will help to reduce fine dust mites in the bedroom.