General information

Question text: What type of air cleaner/filter is used? (please check all that apply)
Answer type: Check boxes
Answer options: 1 HEPA filter
2 Electrostatic precipitator
3 Negative ion generator
4 Ozone generator
5 Regular or fiberglass furnace filter
6 Don't know
7 Other, please specify: ~AO016_other
Label: what kind of air filter
Empty allowed: One-time warning
Error allowed: Not allowed
Multiple instances: No

Data information

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