query: How do I keep indoor air quailty high without letting in the outdoor air?
positive_passages.docid: 152375
positive_passages.text: Can houseplants actually improve air quality?
negative_passages.docid: 114257
negative_passages.text: Balloons and lifting gases
negative_passages.docid: 49434
negative_passages.text: In summer, should I close curtains during the day?
negative_passages.docid: 103652
negative_passages.text: How do I secure my house against intruders?
negative_passages.docid: 11596
negative_passages.text: On a hot day, when it's cooler outside than in; is it better to put a fan in an open window pointing inwards or outwards?
negative_passages.docid: 120431
negative_passages.text: Vertical space before environments
negative_passages.docid: 74766
negative_passages.text: What is a good way to keep my tires from going flat easily?
negative_passages.docid: 95349
negative_passages.text: How to set temperature warnings to avoid overheat?
negative_passages.docid: 96178
negative_passages.text: Keep footer with variable height on bottom
negative_passages.docid: 147854
negative_passages.text: What is the proper way to insulate a cantilevered bay?
negative_passages.docid: 46324
negative_passages.text: Why does extended piston become stuck if air above it is powered?
negative_passages.docid: 131907
negative_passages.text: How do I keep sweat out of my eyes?
negative_passages.docid: 63224
negative_passages.text: How can I control where smoke and fire are emitted from?
negative_passages.docid: 82514
negative_passages.text: Why we won't extract heat from air temperature?
negative_passages.docid: 31695
negative_passages.text: How do I adjust a door so it doesn't swing on its own?
negative_passages.docid: 123672
negative_passages.text: Portable air conditioner question
negative_passages.docid: 16396
negative_passages.text: Prevent elevation (UAC) for an application that doesn't need it