Rooms · reference
Air Purifier for a Bedroom: What Size You Need
Sizing an air purifier for a bedroom is arithmetic before it is shopping. Measure the floor area, take the published minimum CADR for that area.
Updated 30 Aug 2026
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Every room sized on its own floor area, because the minimums are published per room rather than per house.
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Air Purifier for a Nursery: What Size You Need
A nursery is sized exactly like a bedroom, because it is one: floor area, published minimum, no interpolation. What changes is the occupant.
Updated 30 Aug 2026
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Air Purifier for a Living Room: What Size You Need
The living room is usually the largest furnished space in the home. Between the 300 and 400 sq ft rows that minimum is 260 cfm.
Updated 25 Oct 2026
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Air Purifier for a Kitchen: What Size You Need
Sizing a kitchen is the same floor-area arithmetic as any room: between the 100 and 200 sq ft rows, the published minimum is 130 cfm.
Updated 30 Aug 2026
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Air Purifier for a Basement: What Size You Need
Size a basement the way you size any room: floor area, published row, round up between rows. Basements tempt two mistakes.
Updated 30 Aug 2026
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Air Purifier for a Home Office: What Size You Need
A home office is usually the smallest room you will size, and the arithmetic is short. Anything up to the 200 sq ft row takes 130 cfm.
Updated 25 Oct 2026
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Air Purifier for an Apartment: What Size You Need
The flat is not the room. EPA’s minimums are published per room, so the sizing question is always "which room is this unit standing in?".
Updated 25 Oct 2026
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Air Purifier for a Dorm Room: What Size You Need
A dorm room is the smallest sizing job on the site. Around 100 square feet, it sits on the smallest published row: 65 cfm at an 8-foot ceiling.
Updated 25 Oct 2026
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Air Purifier for a Garage Workshop: What Size You Need
A working garage zone between the 400 and 600 sq ft rows takes 390 cfm, the table’s last published minimum. The arithmetic is ordinary.
Updated 25 Oct 2026
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Air Purifier for an Open-Plan Space: What Size You Need
An open-plan zone between the 500 and 600 sq ft rows takes 390 cfm, the largest minimum EPA publishes, at an 8-foot ceiling.
Updated 25 Oct 2026
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Air Purifier for a Rented Flat: What Size You Need
Size the room the unit stands in, as always: a rented flat’s main room between the 200 and 300 sq ft rows takes 195 cfm at an 8-foot ceiling.
Updated 25 Oct 2026
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Air Purifier for a Conservatory: What Size You Need
On paper a conservatory sizes like any room: between the 200 and 300 sq ft rows, the published minimum is 195 cfm.
Updated 30 Aug 2026
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Air Purifier for a Loft Conversion: What Size You Need
A loft conversion between the 200 and 300 sq ft rows takes a published minimum of 195 cfm, measured, like every row, against an 8-foot ceiling.
Updated 25 Oct 2026
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Air Purifier for a Spare Room: What Size You Need
A spare room sizes like any bedroom: between the 100 and 200 sq ft rows, the published minimum is 130 cfm at an 8-foot ceiling.
Updated 25 Oct 2026
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Air Purifier for a Hallway: What Size You Need
Most hallways sit under the smallest published row. There is no row below 100 sq ft, so the floor is 65 cfm at an 8-foot ceiling.
Updated 30 Aug 2026
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Air Purifier for a Guest Room: What Size You Need
A guest room is a bedroom that works part-time, and the sizing is identical. The differences are scheduling and guests.
Updated 25 Oct 2026
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Air Purifier for a Playroom: What Size You Need
A playroom floor between the 100 and 200 sq ft rows rounds up to the 200 row. Playrooms manufacture particles.
Updated 30 Aug 2026
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Air Purifier for a Utility Room: What Size You Need
Utility rooms are usually under the smallest published row, so 65 cfm at an 8-foot ceiling is the floor. The room splits honestly in two.
Updated 25 Oct 2026
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Air Purifier for an Attic Room: What Size You Need
An attic room between the 200 and 300 sq ft rows takes 195 cfm at an 8-foot ceiling. Attics bend the assumptions.
Updated 25 Oct 2026
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Air Purifier for a Studio Flat: What Size You Need
A studio is the one home where the sizing denominator is finally honest: the whole flat is one room.
Updated 25 Oct 2026
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