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What is a mould spore?
Moulds release microscopic spores into the air to reproduce. These spores are in outdoor air all year round, and increase especially on damp, warm autumn days when leaves are rotting. For some people, mould spores are a seasonal allergen, like pollen.
What does a window filter do?
Most mould spores are of a size a window filter can hold back. With the window open, the filter catches some of the spores coming in from outside. This reduces the spore load from outdoor air.
For mould inside the home
Mould inside the home usually comes from humidity and poor ventilation. Here the real solution is to control humidity:
- Air the home regularly. With a window filter you can air the home without worrying about dust and pollen from outside.
- Remove humidity from the bathroom and kitchen. Open the window briefly after showers and cooking.
- Move furniture slightly away from cold walls. Air circulation reduces condensation.
- Do not dry wet laundry in a closed room.
A window filter does not remove mould that has formed inside the home. If you see mould on the walls, you need to find and deal with the source of humidity.
