I live in a city with bad air pollution and no central HVAC system. I have two air purifiers and an air quality monitor. Both air purifiers are effective in reducing the particulate matter count. But unless they are run at full speed 24 hours a day the indoor air quality doesn't stay within a safe range. If they are run at less than full speed then a safe particle count is only reached after many hours. When a window or exterior door is opened the particle count shoots up quickly.
I want to be able to freely open doors and have a bearable amount of noise. It's possible that other air purifiers run quieter but it seems noise level and effectiveness are directly correlated. Are there any other measures to increase the effectiveness of an air filtration system? Should I seal doors and windows with weather strips? Our home has fans in both the kitchen and bathroom. When running these fans the air quality gets worse. If the bathroom/kitchen doors are kept well-sealed and closed would it help?
Best Answer
A filtered fresh air supply(intake) would work for this. You can filter the air in your living space all you want, but any leak or opening could allow dirty air to leak in.
If you filter outside air and blow the filtered air inside, your living space will be very slightly pressurized. Then any leaks would just be your clean air blowing outside, not the other way around.
An air filter with inlet and outlet ducts would be optimal for this setup, and set up the filter inlet to the outside.