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ao016s1
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 |