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miniika t1_isycs33 wrote

Neighbors were cutting their weeds stirring up dust this morning. No problem, except I can smell the dust in my house. The AC hasn't been on at all today and all doors and windows have been closed the entire time.

My house (brick) has always been very dusty, no matter how much I clean it and I've had a lot of allergy problems. I assumed it was due to my HVAC system, but apparently not. There aren't any obvious holes or cracks in the roof or walls or around doors or windows.

How is dust getting in? Can I stop it?

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--Ty-- t1_it4tmf1 wrote

The average home exchanges the entire volume of its air with the outdoors once every 30 minutes to once every 3 hours, depending on how its built.

In ultra high-end sealed homes, that rate may be as little as once every 20-30 hours.

It's just a matter of air leakage. No home is airtight.

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