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4
votes
3answers
3k views

How can I improve ventilation in my room with a window fan while filtering pollen from a nearby tree?

This is a campus building in Aalto University where you have a tree about 10 cm away from the window. The Espoo city does not allow the student organisation AYY to cut down the tree. There is a poor ...
2
votes
2answers
308 views

Combining Air Conditioner with Air Purifier

I have a small 5th floor flat, with high ceilings. The sash windows, which are tall, face south. There is a very busy road underneath the windows. Two rooms have these windows. It's noticeable that I ...
2
votes
2answers
85 views

What methods exist for filtering air to alleviate allergies?

I've found out that I have an allergy, especially for the mold. I live in a very wet climate, so it's a problem. I was given advice to buy this AIRFREE E60 air purifier. But now I'm interested to ...
5
votes
5answers
6k views

How often should the air filter in the furnace be changed?

Does the period of change of this air filter have an affect on the longevity of the heating and a/c system? What is a good rule of thumb to require replacement?