Air Purifier for a Studio flat: What Size You Need

What the published table gives a studio flat#

Size the single area as one room: a floor between the 300 and 400 sq ft rows takes 260 cfm. Smaller studios between the 200 and 300 sq ft rows take 195 cfm; larger ones that reach the 500 sq ft row take 325.

Past 600 sq ft the table ends, and even a generous studio rarely gets there. The published rows, for once, describe the actual home.

Cooking and sleeping share one volume#

In a flat with walls, the kitchen’s smoke is the kitchen’s problem for an evening. In a studio it is the bedroom’s problem by bedtime. The smoke CADR, the column marking the smallest particles, is the honest comparator for a room where frying happens a few steps from the pillow.

The range hood still leads while cooking; extraction at source beats dilution, even in the smallest of floor plans.

The one good case for above-minimum#

The published minimum assumes a room in use, and this room is always in use. Occupied around the clock, cleaned around the clock, if any room earns a CADR above its row, it is the one you never leave.

That is not an argument for ignoring the table. It is the table’s own logic: 260 cfm is a floor, and floors are for standing above.

Placement and running#

Compare quiet units sized for the whole floor area: in a studio, noise on low is the specification that decides everything.

• Between the cooking and sleeping zones if the floor plan allows, where the air between zones has to pass it.
• Clearance on every side; studios invent clutter as a hobby.
• Not blowing directly at the bed.
• Run it continuously, sleep included, on a setting that meets the minimum quietly.