Apartment air planning sheet Yenra | Updated September 10, 2026 Article: https://yenra.com/wiki/Clean_Air_Apartment/ Instructions: Save this UTF-8 text file and fill in the fields in any text editor. Keep dated source references with the completed record. Blank fields are prompts for your information. Fill one sheet per room. Use the equipment manual and official guidance for the specific concern. This worksheet does not establish that a room is safe for every pollutant. Room / main occupants / hours used: Concern and recurring source: Landlord or building-system issue / contact: Source-reduction action and date: Ventilation arrangement / outdoor conditions checked: Room length (ft): Room width (ft): Ceiling height (ft): Volume (ft3) = length x width x height: Cleaner model / manual: Smoke CADR (ft3/min), test speed and source: Intended fan setting / rating known at that setting?: Equivalent air changes per hour = CADR x 60 / room volume: Fictional example: 12 x 15 x 8 = 1,440 ft3; 180 x 60 / 1,440 = 7.5 per hour. This idealized comparison assumes the stated clean-air delivery and mixing; it is not a target or field measurement. Placement / clearance check: Filter model / replacement instructions / date checked: Optional repeatable observation log: Date/time | source activity | windows/exhaust | fan speed | sensor pollutant/unit | reading | location Result of one change under comparable conditions: Unresolved issue / next action / review date: Primary references consulted for the accompanying guide: https://www.epa.gov/indoor-air-quality-iaq/improving-indoor-air-quality https://www.epa.gov/indoor-air-quality-iaq/guide-air-cleaners-home https://www.epa.gov/indoor-air-quality-iaq/ozone-generators-are-sold-air-cleaners https://www.airnow.gov/wildfires/when-smoke-is-in-the-air/